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question_answer1)
Which of the following part is modified into pitcher in pitcher plant?
A)
Leaf done
clear
B)
Nodes done
clear
C)
Stem done
clear
D)
Roots done
clear
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question_answer2)
Which of the following grow into a new fungi plant?
A)
seeds done
clear
B)
pollen done
clear
C)
spores done
clear
D)
none of these done
clear
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question_answer3)
Watering and manuring are necessary for the growth of
A)
crops done
clear
B)
animals done
clear
C)
human beings done
clear
D)
trees done
clear
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question_answer4)
Which of the following is an adaptation developed by the desert plants to reduce loss of water.
A)
They shed leaves in summer done
clear
B)
They develop aerial roots done
clear
C)
They have fleshy leaves done
clear
D)
They have leaves modified into spines. done
clear
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question_answer5)
In leguminous plants the roots are modified into
A)
stilt roots done
clear
B)
nodulated roots done
clear
C)
fibrous roots done
clear
D)
prop roots done
clear
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question_answer6)
The role of bacteria present in root nodules of leguminous plants is
A)
to perform photosynthesis done
clear
B)
to store food done
clear
C)
to fix atmospheric nitrogen done
clear
D)
none of these done
clear
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question_answer7)
Which of the following is a carnivorous plant?
A)
Fern done
clear
B)
Lichen done
clear
C)
Sundew done
clear
D)
Mould done
clear
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question_answer8)
Plants are called autotrophs. Which of the following arguments is correct in favour of this statement?
A)
They prepare their own food. done
clear
B)
They do not prepare their own food. done
clear
C)
They derive nutrition from soil. done
clear
D)
None of the above. done
clear
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question_answer9)
The organisms, which obtain nutrition from dead and decaying organic matter are called?
A)
Saprophytes done
clear
B)
Parasites done
clear
C)
Host done
clear
D)
None of these done
clear
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question_answer10)
Lichens are a symbiotic association of algae sad fungi. Which of the following statements is correct in respect of lichens?
A)
Fungus supplies water and minerals to cells of algae. done
clear
B)
Algae supplies food to the fungus. done
clear
C)
Fungus supplies water, minerals and food to algae and algae do not supply anything. done
clear
D)
Both (a) and (b) are correct. done
clear
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question_answer11)
While taking a walk in apark, Muskan observed that an insect sat on a pitcher plant (Nepenthes). Immediately the flower opened up and the insect slid down. To which of the following categories does the pitcher plant belongs?
A)
Saprophytes done
clear
B)
Insectivorous done
clear
C)
Parasite done
clear
D)
Symbiotic done
clear
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question_answer12)
Which of the following is necessary for photosynthesis?
A)
Carbon dioxide, water and sunlight done
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B)
Carbon dioxide and water only done
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C)
Carbon dioxide, water and chlorophyll done
clear
D)
Carbon dioxide, water, sunlight and chlorophyll done
clear
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question_answer13)
Which of the following plants can convert atmospheric nitrogen into soluble form that can be used by plants?
A)
Bitter gourd done
clear
B)
Cereals done
clear
C)
Legumes done
clear
D)
Nuts done
clear
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question_answer14)
Mainly pulses are the sources of
A)
proteins done
clear
B)
carbohydrates done
clear
C)
fats done
clear
D)
None of these done
clear
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question_answer15)
Starch is a kind of
A)
carbohydrate done
clear
B)
fat done
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C)
protein done
clear
D)
vitamin done
clear
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question_answer16)
The symbiotic relationship is shown by
A)
Mushrooms done
clear
B)
Lichens done
clear
C)
Pitcher plants done
clear
D)
Cuscuta done
clear
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question_answer17)
The process of taking in and utilizing food for growth and development is known as
A)
ingestion done
clear
B)
nutrition done
clear
C)
digestion done
clear
D)
all of these done
clear
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question_answer18)
Nutrients enable living organisms
A)
to grow done
clear
B)
to build their bodies done
clear
C)
to provide energy done
clear
D)
all the above are correct done
clear
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question_answer19)
Which of the following parts of a plant are called its "food factories"?
A)
Flowers done
clear
B)
Seeds done
clear
C)
Leaves done
clear
D)
None of these done
clear
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question_answer20)
The tiny pores present on the surface of leaves are called
A)
cells done
clear
B)
stomata done
clear
C)
transpiration done
clear
D)
none of these done
clear
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question_answer21)
Photosynthesis occurs in which of the following parts of plants?
A)
Leaves done
clear
B)
Green stems done
clear
C)
Green branches done
clear
D)
All of these done
clear
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question_answer22)
Photosynthesis can occur
A)
in green leaves done
clear
B)
in leaves other than green leaves done
clear
C)
both the above are correct done
clear
D)
none of the above is correct done
clear
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question_answer23)
Algae is
A)
an autotroph done
clear
B)
heterotroph done
clear
C)
virus done
clear
D)
none of these done
clear
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question_answer24)
Cuscuta is
A)
an autotroph done
clear
B)
a parasite done
clear
C)
an insectivorous done
clear
D)
none of these done
clear
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question_answer25)
Fungi are
A)
green in colour done
clear
B)
white is colour done
clear
C)
brown in colour done
clear
D)
green, white, brown or any other colour. done
clear
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question_answer26)
Which of the following is a mode of nutrition?
A)
Autotroph done
clear
B)
Heterotroph done
clear
C)
Saprophytic done
clear
D)
All of these done
clear
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question_answer27)
Select the ruminants from the following
A)
Camel done
clear
B)
Giraffe done
clear
C)
Deer done
clear
D)
All of these done
clear
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question_answer28)
Nutrition:
A)
It is a mode of taking food by an organism done
clear
B)
It refers to the type of food that an organism takes done
clear
C)
It is a mode of taking food by an organism and its utilization by the body. done
clear
D)
All the above are correct done
clear
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question_answer29)
Chlorophyll
A)
It is the green pigment present in the leaves of plants. done
clear
B)
It is responsible for the green colour of most of the plants. done
clear
C)
Both the above are correct done
clear
D)
None of the above is correct done
clear
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question_answer30)
Symbiotic relationship
A)
A mode of life in which two organisms live in intimate association with each other done
clear
B)
Two organisms live together and share the shelter. done
clear
C)
Two organisms live together and share nutrients. done
clear
D)
All the above are correct. done
clear
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question_answer31)
Why Cuscuta is called parasite?
A)
It climbs on other plants. done
clear
B)
It deprives the plant (i.e., its host) of valuable nutrients. done
clear
C)
Both the above are correct. done
clear
D)
None of the above is correct done
clear
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question_answer32)
The number of products formed in process of photosynthesis is
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
4 done
clear
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question_answer33)
How many organisms are involved in a symbiotic relationship?
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
4 done
clear
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question_answer34)
Seimy green patches in ponds or in stagnant water
A)
Fungi done
clear
B)
Bryophytes done
clear
C)
Bacteria done
clear
D)
Algae done
clear
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question_answer35)
In order to survive all plants need
A)
roots, stens and leaves done
clear
B)
food, water and air done
clear
C)
eyes, nose and ears done
clear
D)
light, soil and nitrients done
clear
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question_answer36)
Plants excrete gases through
A)
tiny poses in leaves done
clear
B)
flowers done
clear
C)
seeds done
clear
D)
small porous roots done
clear
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question_answer37)
Xerophytes have very small leaves or spines
A)
reduce weight done
clear
B)
reduce loss of water done
clear
C)
reduce volume done
clear
D)
be beautiful done
clear
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question_answer38)
Veins
A)
absorb water and minerals from the soil done
clear
B)
absorb carbon dioxide from the atmosphere done
clear
C)
transport water, food and minerals in a leaf done
clear
D)
release oxygen and carbon dioxide into the Atmosphere done
clear
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question_answer39)
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns.
Column-I | Column-II |
(A) Nutrition | (p) mode of nutrition |
(B) Autotrophic | (q) Basic unit of structure of all living beings. |
(C) Cell | (r) Mode of taking food |
(D) Nutrients | (s) Those components of food that are necessary for our body. |
A)
(A) \[\to \] (p), (B) \[\to \] (q), (C) \[\to \] (r), (D) \[\to \] (s) done
clear
B)
(A) \[\to \] (q), (B) \[\to \] (r), (C) \[\to \] (s), (D) \[\to \] (p) done
clear
C)
(A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (q), (D) \[\to \] (s) done
clear
D)
(A) \[\to \] (r), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (q) done
clear
View Solution play_arrow
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question_answer40)
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns.
Column-I | Column-II |
(A) Food factories of plants | (p) Semi-permeable membrane |
(B) Cell membrane | (q) Leaves |
(C) Tiny pores on the surface of leaves surrounded by ?guard cells? | (r) Complex chemical substances |
(D) Carbohydrates | (s) Stomata |
A)
(A) \[\to \] (p), (B) \[\to \] (r), (C) \[\to \] (q), (D) \[\to \] (s) done
clear
B)
(A) \[\to \] (q), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (r) done
clear
C)
(A) \[\to \] (r), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (q) done
clear
D)
(A) \[\to \] (s), (B) \[\to \] (q), (C) \[\to \] (p), (D) \[\to \] (r) done
clear
View Solution play_arrow
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question_answer41)
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns.
Column-I | Column-II |
(A) Cuscuta | (p) Saprophyte |
(B) Mushroom | (q) Xerophytes |
(C) Nepenthes | (r) Parasite |
(D) Cactus | (s) Insectivorous |
A)
(A) \[\to \] (r), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (q) done
clear
B)
(A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (q) done
clear
C)
(A) \[\to \] (s), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (q) done
clear
D)
(A) \[\to \] (q), (B) \[\to \] (r), (C) \[\to \] (p), (D) \[\to \] (s) done
clear
View Solution play_arrow
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question_answer42)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The bodies of living organisms are made of tiny units called cells. Cells can be seen only under microscope. Some organisms are made of only one cell. The cell is enclosed by a thin boundry, called the cell membrane. The smallest structural unit of a living organism is
A)
a cell done
clear
B)
a tissue done
clear
C)
either a cell or a tissue done
clear
D)
none of these done
clear
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question_answer43)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The bodies of living organisms are made of tiny units called cells. Cells can be seen only under microscope. Some organisms are made of only one cell. The cell is enclosed by a thin boundry, called the cell membrane. In bigger bodies there are a large number of cells, whereas in some organisms there is only one cell. The cell can be seen
A)
with naked eye done
clear
B)
under the microscope done
clear
C)
both the above are correct done
clear
D)
cell cannot be seen by us. done
clear
View Solution play_arrow
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question_answer44)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The bodies of living organisms are made of tiny units called cells. Cells can be seen only under microscope. Some organisms are made of only one cell. The cell is enclosed by a thin boundry, called the cell membrane. Cell membrane
A)
is the thin outer boundary of the cell done
clear
B)
is a semi-permeable membrane done
clear
C)
both the above are correct done
clear
D)
none of the above is correct done
clear
View Solution play_arrow
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question_answer45)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 There are some plants that can eat animals. A few plants can trap insects and digest them. Such plants maybe green or of some other colour. One such plant is a pitcher plant whose pitcher like structure is a modified part of the leaf. The apex of the leaf forms a lid which can open and close the mouth of the pitcher. Which of the following is correct:
A)
Some plants can eat animals and are called insectivorous. done
clear
B)
Animals eat plants and are called heterotrophs. done
clear
C)
Both the above are correct done
clear
D)
None of these is correct done
clear
View Solution play_arrow
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question_answer46)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 There are some plants that can eat animals. A few plants can trap insects and digest them. Such plants maybe green or of some other colour. One such plant is a pitcher plant whose pitcher like structure is a modified part of the leaf. The apex of the leaf forms a lid which can open and close the mouth of the pitcher. Which of the following is an insectivorous plant?
A)
Cuscuta done
clear
B)
Amarbel done
clear
C)
Pitcher plant done
clear
D)
Algae done
clear
View Solution play_arrow
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question_answer47)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 There are some plants that can eat animals. A few plants can trap insects and digest them. Such plants maybe green or of some other colour. One such plant is a pitcher plant whose pitcher like structure is a modified part of the leaf. The apex of the leaf forms a lid which can open and close the mouth of the pitcher. In the pitcher plant
A)
there is a pitcher like structure done
clear
B)
the apex of the leaf forms a lid which can open and close the mouth of the pitcher. done
clear
C)
both the above are correct done
clear
D)
none of these is correct done
clear
View Solution play_arrow
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question_answer48)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 Plants give out water through the pores present under their leaves. The plants living in deserts need to reduce the loss of water because water is scarce in deserts. Which of the following is an adaptation shown by desert plants?
A)
They have lots of branches and leaves done
clear
B)
They do not shed leaves in summer done
clear
C)
They develop roots which come above the ground done
clear
D)
Their leaves are modified into spines done
clear
View Solution play_arrow
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question_answer49)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 Plants give out water through the pores present under their leaves. The plants living in deserts need to reduce the loss of water because water is scarce in deserts. Which part of a cactus plant performs photosynthesis?
A)
leaves done
clear
B)
spines done
clear
C)
roots done
clear
D)
stem done
clear
View Solution play_arrow
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question_answer50)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 Plants give out water through the pores present under their leaves. The plants living in deserts need to reduce the loss of water because water is scarce in deserts. The pigment present in green portions of a cactus plant is:
A)
Keratin done
clear
B)
chlorophyll done
clear
C)
acrotonin done
clear
D)
hemoglobin done
clear
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question_answer51)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 A plant was kept in a dark room for a week. Its leaves were tested with iodine solution. The test was negative. What is tested with iodine solution?
A)
proteins done
clear
B)
starch done
clear
C)
fats done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer52)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 A plant was kept in a dark room for a week. Its leaves were tested with iodine solution. The test was negative. Why was the test negative?
A)
there was no sunlight in the room done
clear
B)
the leaves were not green in colour done
clear
C)
the iodine solution was not good done
clear
D)
there was no water in the pot done
clear
View Solution play_arrow
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question_answer53)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 A plant was kept in a dark room for a week. Its leaves were tested with iodine solution. The test was negative. To test with iodine solution which of the following is not a step that is necessary?
A)
Boil the leaf first in water and then in alcohol done
clear
B)
Wash the bleached leaf done
clear
C)
Heat the leaf on a hot flame done
clear
D)
Add few drops of iodine solution to the bleached leaf. done
clear
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question_answer54)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Plants make their food themselves and are called autotrophs. Reason (R): Human beings and other animals depend on plants for their food.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer55)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Water and minerals present in soil are absorbed by roots and transported to leaves. Reason (R): Carbon dioxide from air is taken through stomata present on the surface of leaves.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer56)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): The green pigment present in the leaves of plants is called chlorophyll. Reason (R): This green pigment is responsible for the green colour of most of the plants.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer57)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Sun is the ultimate source of energy for all living organisms. Reason (R): Sunlight is one of the essential conditions for photosynthesis to occur in plants.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer58)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) The only organisms that can make their own food are plants (ii) Autotrophic is a mode of nitration
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer59)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Photosynthesis is a process by which plants prepare their own food. (ii) Carbohydrates are simple chemical substances.
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer60)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Cuscuta is a parasite (ii) Cuscuta is a yellow tubrular structure that can be seen turning around the stem and branches of a tree.
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer61)
DIRECTIONS: Carefully observe pictures given below and answer the following questions.
The above figure illustrates which of the following?
A)
Autotrophic nutrition done
clear
B)
Saprotrophic nutrition done
clear
C)
Symbiotic relationship done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer62)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. Which of the following is correct about the desert plants?
A)
It has spine-like leaves done
clear
B)
The spine-like leaves can take water from the atmosphere easily. done
clear
C)
The plants cannot carry out the process of photosynthesis done
clear
D)
None of the above is correct done
clear
View Solution play_arrow
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question_answer63)
Statement: All green plants have chlorophyll pigment Statement: Without chlorophyll, photo-synthesis cannot take place. From the above statements, Anita concluded that the purple colour croton plants in her garden cannot prepare food on its own. Her teacher said this is not true. Why?
A)
Croton plants are green but they do not contain chlorophyll done
clear
B)
Croton plants do not have chlorophyll but can prepare own food done
clear
C)
Croton plants are purple in colour but have chlorophyll which is hidden done
clear
D)
Croton plants are purple in colour and do not contain chlorophyll done
clear
View Solution play_arrow
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question_answer64)
When alcohol was poured on the leaves of a plant continuously, the plant could not prepare foods on its own. What was happened?
A)
Alcohol dissolved the chlorophyll done
clear
B)
Alcohol dissolved all the minerals done
clear
C)
Alcohol did not allow carbon dioxide to enter the leaves done
clear
D)
Alcohol absorbed all the food. done
clear
View Solution play_arrow
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question_answer65)
Rafflesia is a parasite because
A)
It has no chlorophyll done
clear
B)
It grows on roots of trees done
clear
C)
It sucks food from the roots of trees done
clear
D)
It has gigantic flowers done
clear
View Solution play_arrow
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question_answer66)
Living organisms found near the stagnate water which prepare their own food by the process of photosynthesis.
A)
Anabaena done
clear
B)
Algae done
clear
C)
Nostoc done
clear
D)
Cyanobacteria done
clear
View Solution play_arrow
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question_answer67)
"Plants which have deep red or brown leaves also carry out photosynthesis". Why?
A)
Because they also have chlorophyll done
clear
B)
The colours present in leaves cover the green colour done
clear
C)
Because they have green stem done
clear
D)
Both (a) and (b) done
clear
View Solution play_arrow
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question_answer68)
A vine like plant with yellowish stem and it get nutrition from banyan tree.
A)
Sundew done
clear
B)
Dodder done
clear
C)
Pitcher plant done
clear
D)
Venus fly trap done
clear
View Solution play_arrow
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question_answer69)
No green plant which get their food from dead or decaying matter.
A)
Fungi done
clear
B)
Yeast done
clear
C)
Agaricus done
clear
D)
All the above done
clear
View Solution play_arrow
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question_answer70)
Flowering plants whose root constitutes mycorrhizal relationship with fungal hyphae.
A)
Indian pipe done
clear
B)
Neottia idus-avis done
clear
C)
Bladerwort plant done
clear
D)
Both a and b done
clear
View Solution play_arrow
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question_answer71)
Which statement is NOT true for Monotropa?
A)
It is a flowering plant done
clear
B)
It helps in absorption done
clear
C)
It is commonly known as Indian pipe done
clear
D)
It sucks liquid for the stem of the host done
clear
View Solution play_arrow
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question_answer72)
The figure shown sucks juice of insects and is a best example of insectivorous plant.
A)
Dionea done
clear
B)
Sundew done
clear
C)
Venus fly trap done
clear
D)
Rafflesia done
clear
View Solution play_arrow
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question_answer73)
A composite organism in which a mycobiont and a photosynthetic partner plays an important role.
A)
Cyan bacteria done
clear
B)
Lichen done
clear
C)
Moss done
clear
D)
Liverwort done
clear
View Solution play_arrow
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question_answer74)
This is broom rope bacteria, is parasite on its plants and get its nutrients from the roots.
A)
Viscum album done
clear
B)
Oranbacheramosa done
clear
C)
Rawwolfia done
clear
D)
Bladderwort done
clear
View Solution play_arrow
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question_answer75)
Identify the plant
A)
Monotropa done
clear
B)
Rafflesia done
clear
C)
Sundew plant done
clear
D)
Nettle done
clear
View Solution play_arrow
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question_answer76)
The flower which lacks chlorophyll and has smell of rotten meat.
A)
Mistletoe done
clear
B)
Dodder done
clear
C)
Drosera done
clear
D)
Rafflesia done
clear
View Solution play_arrow
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question_answer77)
Nitrifying bacteria is used in which type of mode of nutrition.
A)
Heterotrophic done
clear
B)
Chemoautotrophic done
clear
C)
Photoautotrophic done
clear
D)
Autotrophic done
clear
View Solution play_arrow
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question_answer78)
Napether has heterotrophic mode of nutrition. It is _______.
A)
Saprophyte done
clear
B)
Carnivore done
clear
C)
Parasite done
clear
D)
Insectivore done
clear
View Solution play_arrow
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question_answer79)
Black rust disease caused by Puccinia graminis named fungus is found in _____.
A)
Wheat done
clear
B)
Sugarcane done
clear
C)
Maize done
clear
D)
Rice done
clear
View Solution play_arrow
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question_answer80)
Partially parasitic plant grown in woods of Tamilnadu are rootless plant and which grows in roots of host plant.
A)
Viscum album done
clear
B)
Santalum done
clear
C)
Loran thus done
clear
D)
Amarbel done
clear
View Solution play_arrow
-
question_answer81)
These are nitrogen fixing bacteria which takes nitrogen gas from air and coverts into usable form
A)
Rhizobium done
clear
B)
Nostoc done
clear
C)
Anabaena done
clear
D)
All the above done
clear
View Solution play_arrow
-
question_answer82)
This bacteria is capable of photosynthesis, is anaerobic or microaerophilic and found in hot springs or stagnant water.
A)
green bacteria done
clear
B)
cyanobacteria done
clear
C)
Iron bacteria done
clear
D)
Purple sulphur bacteria done
clear
View Solution play_arrow
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question_answer83)
The disease caused by fungi in human is-
A)
Candidiasis done
clear
B)
Meningitis done
clear
C)
Tuberculosis done
clear
D)
Pneumonia done
clear
View Solution play_arrow
-
question_answer84)
Small rod shaped bacteria living in sewage or soil and is oxidizing sulphur.
A)
Sulphur bacteria done
clear
B)
Lactobacillus done
clear
C)
Iron bacteria done
clear
D)
Thiobacillus done
clear
View Solution play_arrow
-
question_answer85)
The fugus which is commonly known as bread mold-
A)
Rhizopus nigricans done
clear
B)
Rhizopus oryzae done
clear
C)
Mucor done
clear
D)
Rhizopus oligosporus done
clear
View Solution play_arrow
-
question_answer86)
The bacterium Rhizobium helps the crops to get nitrogen. Select the statement that is incorrect about Rhizobium.
A)
Rhizobium converts atmospheric nitrogen into a soluble form that the plants can absorb. done
clear
B)
Rhizobium can make its own food. done
clear
C)
Rhizobium lives in the roots of leguminous plants such as gram, peas and moong. done
clear
D)
Leguminous plants provide food and shelter to Rhizobium. done
clear
View Solution play_arrow
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question_answer87)
Which of the following can be proved experimentally?
A)
Light is necessary for photosynthesis done
clear
B)
Chlorophyll is necessary for photo synthesis done
clear
C)
Carbon dioxide is necessary for photosynthesis done
clear
D)
All the can be proved experimentally done
clear
View Solution play_arrow
-
question_answer88)
In which of the following processes is oxygen liberated?
A)
Combustion done
clear
B)
Photosynthesis done
clear
C)
Respiration done
clear
D)
Evaporation done
clear
View Solution play_arrow
-
question_answer89)
In a symbiotic relationship
A)
two organisms live in intimate association done
clear
B)
two organisms share shelter and nutrition done
clear
C)
both the above are correct done
clear
D)
none of the above is correct done
clear
View Solution play_arrow
-
question_answer90)
Saprotrophs
A)
Plants which derive their nutrition from dead and decaying matter done
clear
B)
Plants whose mode of nutrition is saprotrophic done
clear
C)
Both the above are correct done
clear
D)
None of the above is correct done
clear
View Solution play_arrow
-
question_answer91)
Why is it said that life would be impossible on earth in the absence of photosynthesis?
A)
In the absence of photosynthesis, there would be no food available for us. done
clear
B)
Solar energy is the ultimate source of energy. done
clear
C)
Solar energy is essential for photosynthesis done
clear
D)
None of the above is correct done
clear
View Solution play_arrow
-
question_answer92)
If chlorophyll (green pigment) is present in leaves of other colours, then why do they not appear green?
A)
They have no chlorophyll in them done
clear
B)
The chlorophyll present in them is of different colour. done
clear
C)
The green colour is masked by large amount of red, brown or other pigments present in them. done
clear
D)
None of the above is correct. done
clear
View Solution play_arrow
-
question_answer93)
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns
Column - I | Column - II |
(A) Neottia | (p) Total parasite |
(B) Dionea | (q) Saprophyte |
(C) Amarbel | (r) Partial parasite |
(D) Loran thus | (s) Insectivore |
A)
(A) \[\to \] (r), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (q) done
clear
B)
(A) \[\to \] (q), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (r) done
clear
C)
(A) \[\to \] (s), (B) \[\to \] (p), (C) \[\to \] (q), (D) \[\to \] (r) done
clear
D)
(A) \[\to \] (r), (B) \[\to \] (q), (C) \[\to \] (p), (D) \[\to \] (s) done
clear
View Solution play_arrow
-
question_answer94)
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns
Column - I | Column - II |
(A) Green colour of algae | (p) Cuscuta |
(B) Have no chlorophyll | (q) Chlorophyll |
(C) Fungi | (r) Spoils many things during rainy seasons |
(D) Peas | (s) Leguminous plant |
A)
(A) \[\to \] (p), (B) \[\to \] (q), (C) \[\to \] (r), (D) \[\to \] (s) done
clear
B)
(A) \[\to \] (q), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (r) done
clear
C)
(A) \[\to \] (s), (B) \[\to \] (r), (C) \[\to \] (q), (D) \[\to \] (p) done
clear
D)
(A) \[\to \] (q), (B) \[\to \] (p), (C) \[\to \] (r), (D) \[\to \] (s) done
clear
View Solution play_arrow
-
question_answer95)
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns
Column-I | Column-II |
(A) Rhizopus | (p) Indian pipe |
(B) Monotropa | (q) Insectivore |
(C) Corpse flower | (r) Saprophytic |
(D) Utricularia | (s) Rafflesia arnoldii |
A)
(A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (q) done
clear
B)
(A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (q), (D) \[\to \] (s) done
clear
C)
(A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (q), (D) \[\to \] (s) done
clear
D)
(A) \[\to \] (q), (B) \[\to \] (p), (C) \[\to \] (r), (D) \[\to \] (s) done
clear
View Solution play_arrow
-
question_answer96)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The organisms called Fungi secrete digestive juices on dead and decaying matter and convert it into solution. Then they absorb the nutrients from it. Fungal spores are generally present in air. When they land on wet and warm things they germinate and grow. The mode of nutrition adopted by Fungi is called
A)
autotrophic done
clear
B)
heterotrophic done
clear
C)
saprotrophic done
clear
D)
none of these done
clear
View Solution play_arrow
-
question_answer97)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The organisms called Fungi secrete digestive juices on dead and decaying matter and convert it into solution. Then they absorb the nutrients from it. Fungal spores are generally present in air. When they land on wet and warm things they germinate and grow. Fungi can grow
A)
on a moistened piece of bread left in a warm place for 2-3 days. done
clear
B)
on pickles, leather, clothes that are left in hot and humid weather for 2-3 days. done
clear
C)
both are correct done
clear
D)
none of the above is correct done
clear
View Solution play_arrow
-
question_answer98)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The organisms called Fungi secrete digestive juices on dead and decaying matter and convert it into solution. Then they absorb the nutrients from it. Fungal spores are generally present in air. When they land on wet and warm things they germinate and grow. Fungi
A)
secrete digestive juices on dead and decaying matter. done
clear
B)
absorb nutrients in solution form from dead and decaying matter. done
clear
C)
the mode of nutrition of fungi is called saprotrophic nutrition. done
clear
D)
All the above are correct done
clear
View Solution play_arrow
-
question_answer99)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The organisms called Fungi secrete digestive juices on dead and decaying matter and convert it into solution. Then they absorb the nutrients from it. Fungal spores are generally present in air. When they land on wet and warm things they germinate and grow. What is the mode of nutrition in this plant?
A)
Insectivorous done
clear
B)
Parasitic done
clear
C)
Saprophytic done
clear
D)
autotrophic done
clear
View Solution play_arrow
-
question_answer100)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The organisms called Fungi secrete digestive juices on dead and decaying matter and convert it into solution. Then they absorb the nutrients from it. Fungal spores are generally present in air. When they land on wet and warm things they germinate and grow. The above plant gets its food
A)
from photosynthesis done
clear
B)
from dead and decaying matter done
clear
C)
by eating small insects done
clear
D)
from water done
clear
View Solution play_arrow
-
question_answer101)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The organisms called Fungi secrete digestive juices on dead and decaying matter and convert it into solution. Then they absorb the nutrients from it. Fungal spores are generally present in air. When they land on wet and warm things they germinate and grow. These can grow on ____ surfaces
A)
warm and moist done
clear
B)
dry done
clear
C)
cold and wet done
clear
D)
all of these done
clear
View Solution play_arrow
-
question_answer102)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Seema planted two plants in pot A and pot B. She poured same amount of water into both the pots but she placed pot A out in the open where sunlight can fall on it and pot B in a dark room where there is no sunlight. What will happen to plant in pot B after some days?
A)
Nothing will happen done
clear
B)
Grow in size done
clear
C)
It will die done
clear
D)
New leaves will grow done
clear
View Solution play_arrow
-
question_answer103)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Seema planted two plants in pot A and pot B. She poured same amount of water into both the pots but she placed pot A out in the open where sunlight can fall on it and pot B in a dark room where there is no sunlight. Plants get carbon dioxide from
A)
soil done
clear
B)
sand done
clear
C)
leaves done
clear
D)
air done
clear
View Solution play_arrow
-
question_answer104)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Seema planted two plants in pot A and pot B. She poured same amount of water into both the pots but she placed pot A out in the open where sunlight can fall on it and pot B in a dark room where there is no sunlight. What will happen to plant A after some days?
A)
It will grow in size and form new leaves done
clear
B)
No change is seen done
clear
C)
It will die done
clear
D)
It will become pale done
clear
View Solution play_arrow
-
question_answer105)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): The product of photosynthesis is a complex chemical substance called carbohydrate. Reason (R): The carbohydrate ultimately gets converted into sugar.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
-
question_answer106)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Some plants are heterophic. Reason (R): Few plants cannot synthesize food on their own and depend upon other plants and small animals.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
-
question_answer107)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Some bacteria are present in root nodules of leguminous plants. Reason (R): Leguminous plants have modulated roots.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
-
question_answer108)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Green colour in leaves help in photosynthesis Reason (R): Photosynthesis results in formation of starch
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
-
question_answer109)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) In saprophytic mode of nutrition organisms take the nutrients in solution term form dead and decaying matter. (ii) Fungi is a saprotroph. (iii) Saprotrophs help in recycling of nutrients,
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
View Solution play_arrow
-
question_answer110)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) The bacteria present in root nodules of plants that fix atmospheric nitrogen is blue green algae (ii) In a cactus plant leaves prepare food. (iii) Plants can use atmospheric nitrogen directly
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
View Solution play_arrow
-
question_answer111)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Without chlorohyll plants can prepare food (ii) All plants have chlorohyll. (iii) Algae do not have chlorophyll.
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
View Solution play_arrow
-
question_answer112)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Lichen is a carnivorous plant. (ii) Symbiosis is a mutually beneficial relationship between two organisms. (iii) Amarbel can prepare its own food through Photosynthesis
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
View Solution play_arrow
-
question_answer113)
DIRECTIONS: Carefully observe pictures given below and answer the following questions.
Which of these can prepare its food?
A)
(i) only done
clear
B)
(ii) only done
clear
C)
Both (i) and (ii) done
clear
D)
Neither (i) nor (ii) done
clear
View Solution play_arrow
-
question_answer114)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. DIRECTION: Look at the given image and answer the given questions:
Arrow 1 shows
A)
release of water and minerals by plants into soil done
clear
B)
release of \[\text{C}{{\text{O}}_{\text{2}}}\] into the soil done
clear
C)
release of \[{{\text{O}}_{\text{2}}}\] into the atmosphere done
clear
D)
absorption of water and minerals by roots from the soil. done
clear
View Solution play_arrow
-
question_answer115)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. DIRECTION: Look at the given image and answer the given questions:
Release of_______ gas is shown by arrow 2.
A)
Oxygen done
clear
B)
water done
clear
C)
carbon dioxide done
clear
D)
nitrogen done
clear
View Solution play_arrow
-
question_answer116)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. DIRECTION: Look at the given image and answer the given questions:
Absorption of \[C{{O}_{2}}\] by the plant is shown by arrow____.
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
None done
clear
View Solution play_arrow
-
question_answer117)
DIRECTIONS: Carefully observe pictures given below and answer the following questions.
Pitcher plant This plant is an example of
A)
Saprophyte done
clear
B)
Insectivore done
clear
C)
Parasite done
clear
D)
Fungi done
clear
View Solution play_arrow
-
question_answer118)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. Which of these derives nutrition from dead and decaying matter?
A)
B)
C)
D)
View Solution play_arrow