question_answer 1)
Which tissue is considered as most primitive both ontogenetically as well as phylogenetic ally?
A)
Parenchyma done
clear
B)
Collenchyma done
clear
C)
Sclerenchyma done
clear
D)
Aerenchyma done
clear
View Solution play_arrow
question_answer 2)
Meristems are not found in:
A)
Cycas stem done
clear
B)
Pollen of Pinus done
clear
C)
Fern leaf done
clear
D)
Fern rhizome done
clear
View Solution play_arrow
question_answer 3)
Healing of wound in plants takes place by activity of:
A)
Intercalary meristem done
clear
B)
Secondary meristem done
clear
C)
Apical meristem done
clear
D)
Lateral meristem done
clear
View Solution play_arrow
question_answer 4)
The given figure shows apical meristem of root apex with few part marked as 1, 2 and 3. Identify the correct labelling of 1, 2 and 3.
A)
1 - Vascular structure, 2 - Protoderm, 3 - Root cap done
clear
B)
1 - Cortex, 2 - Endodermis, 3 - Root cap done
clear
C)
1 - Cortex, 2 - Protoderm, 3 - Root cap done
clear
D)
1 - Tunica, 2 - Protoderm, 3 - Root cap done
clear
View Solution play_arrow
question_answer 5)
Choose the correct option for 1 and 2.
A)
1 - Tracheid, 2 - Vessel done
clear
B)
1 - Vessel, 2 - Tracheid done
clear
C)
1 - Fibre, 2 - Tracheid done
clear
D)
1 - Fibre, 2 - Sclereid done
clear
View Solution play_arrow
question_answer 6)
Monocot leaves grow by:
A)
Apical meristem done
clear
B)
Lateral meristem done
clear
C)
Intercalary meristem done
clear
D)
Dermatogen done
clear
View Solution play_arrow
question_answer 7)
In the monocot root, we observe:
A)
suberised exodermis, polyarch xylem, pith done
clear
B)
exodermis, endarch, tetrarchclosedbundles done
clear
C)
conjoint, collateral, open, polyarch vascular bundle done
clear
D)
suberised exodermis, casparian strip, passage cells, cambium done
clear
View Solution play_arrow
question_answer 8)
Match column-I with column-II and select the correct answer using the codes given below.
Column-I Column-II A. Radial vascular bundle I. Cucurbita pepo B. Collateral vascular bundle II. Dracaena C. Bicollateral vascular bundle III. Roots of angiosperms D. Amphicribral vascular bundle IV. Sunflower stem E. Amphivasal vascular bundle V. fern
A)
A-III; B-IV; C-I; D-V; E-II done
clear
B)
A-II; B-III; C-I; D-V; E-IV done
clear
C)
A-III; B-IV; C-V; D-I; E-II done
clear
D)
A-III; B-I; C-II; D-IV; E-V done
clear
View Solution play_arrow
question_answer 9)
In the given columns, column-I contain structures of plant and column-II contain its feature. Select the correct match.
Column-I Column-II A. Lateral I. Fascicular vascular meristem cambium, inter fascicular cambium and cork cambium. B. Apical meristem II. Produces dermal tissue, ground tissues and vascular tissue. C. Bast fibres III. Generally absent in primary phloem but found in secondary phloem. D. Sap wood IV. Involved in the conduction of water and minerals from the root to leaf.
A)
A-I; B-II; C-III; D-IV done
clear
B)
A-III; B-I; C-II; D-IV done
clear
C)
A-I; B-IV; C-III; D-II done
clear
D)
A-II; B-IV; C-III; D-I done
clear
View Solution play_arrow
question_answer 10)
Which one of the following statement is correct about bull form/motor cell?
A)
It is seen in grasses. done
clear
B)
It is large-sized, thin-walled colourless, vacuolated cells on the ad axial surface. done
clear
C)
It helps in rolling of leaf to minimise water loss when it is flaccid. done
clear
D)
All of the above done
clear
View Solution play_arrow
question_answer 11)
A scion is grafted to a stock. The quality of fruits produced will be determined by the genotype of:
A)
Stock done
clear
B)
Scion done
clear
C)
Both stock and scion done
clear
D)
Neither stock nor scion done
clear
View Solution play_arrow
question_answer 12)
The vascular cambium produces xylem on one side and phloem on other because of it:
A)
inter fascicular position done
clear
B)
multicellular nature done
clear
C)
gravitational force done
clear
D)
difference in supply of hormones on two sides done
clear
View Solution play_arrow
question_answer 13)
Which of the following plant shows multi epidermis?
A)
Croton done
clear
B)
Allium done
clear
C)
Nerium done
clear
D)
Cucurbita done
clear
View Solution play_arrow
question_answer 14)
Identify types of vascular bundles in given figures 1, 2 and 3.
A)
1- Radial 2- Conjoint closed 3- Conjoint open done
clear
B)
1- Conjoint closed 2- Conjoint open 3- Radial done
clear
C)
1- Conjoint open 2- Conjoint 3- Radial done
clear
D)
1- Bicol lateral 2- Concentric 3- Radial done
clear
View Solution play_arrow
question_answer 15)
Red brasilin comes from which part of Caesalpinia sappan?
A)
Bark only done
clear
B)
Heart wood only done
clear
C)
Sap wood and bark done
clear
D)
Heart wood and bark done
clear
View Solution play_arrow
question_answer 16)
The heart wood of Acacia catechu is rich in:
A)
Gums done
clear
B)
Resins done
clear
C)
Tannins done
clear
D)
Mucilages done
clear
View Solution play_arrow
question_answer 17)
A boy standing behind the tree carved his name on the tree, after twenty years:
A)
height of the carved name increased. done
clear
B)
the name was not there as it gets abolished due to secondary growth. done
clear
C)
the height of carved name remain the same. done
clear
D)
the height of the carved name decreased. done
clear
View Solution play_arrow
question_answer 18)
A dendrochronologist observed total 22 ring of spring wood and autumn wood in a dicot stem in 1998. How many annual rings will be observed by him in 2007?
A)
21 done
clear
B)
25 done
clear
C)
20 done
clear
D)
30 done
clear
View Solution play_arrow
question_answer 19)
Bamboo and grasses elongate by the activity of:
A)
Apical meristem done
clear
B)
Lateral meristem done
clear
C)
Secondary meristem done
clear
D)
Intercalary meristem done
clear
View Solution play_arrow
question_answer 20)
Meristematic tissues are composed of :
A)
mature cell done
clear
B)
fully differentiated cell done
clear
C)
cells that cannot divide done
clear
D)
immature cells with power to divide done
clear
View Solution play_arrow
question_answer 21)
Which one of the following option shows the correct labelling of the parts marked as 1, 2, 3 and 4 in the given figure of a typical dicot root?
A)
1 - Primary phloem, 2 - Vascular cambium, 3 - Secondary phloem, 4 - Primary xylem done
clear
B)
1 - Secondary phloem, 2 - Vascular cambium, 3 - Primary phloem, 4 - Primary xylem done
clear
C)
1 - Primary phloem, 2 - Primary xylem, 3 - Secondary phloem, 4- Vascular cambium done
clear
D)
1 - Secondary phloem, 2 - Primary xylem, 3 - Primary phloem, 4 - Vascular cambium done
clear
View Solution play_arrow
question_answer 22)
Largest number of chloroplast is found in:
A)
Palisade tissue done
clear
B)
Spongy tissue done
clear
C)
Transfusion tissue done
clear
D)
Bundle sheath cells done
clear
View Solution play_arrow
question_answer 23)
If a stem is girdled:
A)
root dies first done
clear
B)
shoot dies first done
clear
C)
Both die together done
clear
D)
Neither root nor shoot would die done
clear
View Solution play_arrow
question_answer 24)
In dicotyledonous stem, fascicular cambium is a meristematic tissue. It is an example of which of the following meristem?
A)
Lateral done
clear
B)
Secondary done
clear
C)
Apical done
clear
D)
Intercalary done
clear
View Solution play_arrow
question_answer 25)
Which of the following statement(s) is/are incorrect?
(i) Cork cambium is also called phellogen. (ii) Cork is also called phellem. (iii) Secondary cortex is also called periderm. (iv) Cork cambium, cork and secondary cortex are collectively called phelloderm.
A)
(iii) and (iv) done
clear
B)
(i) and (ii) done
clear
C)
(ii) and (iii) done
clear
D)
(ii) and (iv) done
clear
View Solution play_arrow
question_answer 26)
Which of the following statement is correct about heart wood/duramen?
(i) It does not help in water and mineral conduction. (ii) It is dark coloured but soft. (iii) It has treachery elements filled with tannins, resins, gums, oil, etc. (iv) It is a peripheral part. (v) They are sensitive to microbes and insects, hence least durable.
A)
(i) and (iii) done
clear
B)
(ii) and (iii) done
clear
C)
(iv) and (v) done
clear
D)
(iii) and (iv) done
clear
View Solution play_arrow
question_answer 27)
T.S. of dicot stem is given below, certain parts have been indicated by alphabets. Choose the correct option.
A)
1 - Epidermis, 2 - Epidermal hairs, 3 - Parenchyma, 4 - Starch Sheath, 5 - Hypodermis (collenchyma), 6 - Vascular bundle, 7 - Bundle cap, 8 - Medulla or pith, 9 - Medullary rays done
clear
B)
1 - Epidermal hairs, 2 - Epidermis, 3 - Hypodermis (collenchyma), 4 - Parenchyma, 5 - Starch sheath, 6 - Bundle cap, 7 - Vascular bundle, 8 - Medullary rays, 9 - Medulla or pith done
clear
C)
1 - Epidermal hairs, 2 - Epidermis, 3 - Hypodermis (collenchyma), 4 - Starch sheath, 5 - Parenchyma, 6 - Vascular bundle, 7 - Bundle cap, 8 - Medulla or pith, 9 - Medullary rays done
clear
D)
1 - Epidermal hairs, 2 - Epidermis, 3 - Parenchyma, 4 - Hypodermis (collenchyma), 5 - Starch sheath, 6 - Vascular bundle, 7 - Bundle cap, 8 - Medulla or pith, 9 - Medullary rays done
clear
View Solution play_arrow
question_answer 28)
Match the terms given in column-I with their features given in column-II and choose the correct option.
Column-I (Terms) Column-II (Features) A. Fibres I. Cells are living and thin walled with cellulosic cell wall, store food materials in the form of starch or fat. B. Sclereids II. Main water conductive cells of the pteridophytes and the gymnosperms. C. Tracheids III. Thick walled, elongated and pointed cells, generally occurring in groups. D. Vessels IV. Long cylindrical tube like structure and cells are devoid of protoplasm. Characteristic feature of angiosperms. E. Xylem V. Reduced form of parenchyma sclerenchyma cells with highly thickened lignified cellular walls that form small bundles of durable layers of tissue in most plants.
A)
A - I; B - II; C - III; D - IV; E - V done
clear
B)
A - III; B -V; C - II; D - IV; E - I done
clear
C)
A - III; B - I; C - V; D - II; E - IV done
clear
D)
A - V; B - IV; C - III; D - I; E - II done
clear
View Solution play_arrow
question_answer 29)
Read the following statements and select the correct one(s) from the options.
(i) In flowering plants, tracheid and vessels are the main water transporting elements. (ii) The presence of vessels is a characteristic feature of angiosperms. (iii) Xylem fibres have highly thinned walls and their cell walls are made up of cellulose. (iv) Xylem parenchyma store food materials in the form of starch or fat and other substances like tannins.
A)
Only (i) done
clear
B)
Both (ii) and (iii) done
clear
C)
Both (iii) and (iv) done
clear
D)
(i), (ii) and (iv) done
clear
View Solution play_arrow
question_answer 30)
All the following statements regarding sieve tube elements are correct except that:
A)
their end walls have perforated sieve plates which become impregnated with lignin at maturity. done
clear
B)
they possess peripheral cytoplasm as well as a large vacuole. done
clear
C)
distinct proteinaceous inclusions, the P-proteins are seen evenly distributed throughout the lumen. done
clear
D)
long, slender, tube-like structures arranged in longitudinal series. done
clear
View Solution play_arrow
question_answer 31)
The lacunae in vascular bundles of monocot stems are:
A)
Metaxylem done
clear
B)
Mucilagenous canal done
clear
C)
Lysigenous water cavity done
clear
D)
Large-sized vessel done
clear
View Solution play_arrow
question_answer 32)
From where the commercial jute fibres are obtained?
A)
Interxylary fibres done
clear
B)
Xylem fibres done
clear
C)
Phloem fibres done
clear
D)
None of these done
clear
View Solution play_arrow
question_answer 33)
Abnormal secondary growth is observed in:
A)
Dracaena done
clear
B)
Wheat done
clear
C)
Ginger done
clear
D)
Rice done
clear
View Solution play_arrow
question_answer 34)
The trees growing in deserts will:
A)
show alternate rings of xylem and sclerenchyma. done
clear
B)
show distinct annual rings. done
clear
C)
not show distinct annual rings. done
clear
D)
have only conjunctive tissue and phloem formed by the activity of cambium. done
clear
View Solution play_arrow
question_answer 35)
Choose the correct option for T.S. of monocot root.
A)
1 - Root hair, 2 - Epiblema, 3 - Cortex, 4 - Endodermis, 5 - Passage cell, 6 - Pericycle, 7 - Pith, 8 - Phloem, 9 - Metaxylem, 10 - Protoxylem done
clear
B)
1 - Root hair, 2 - Epiblema, 3 - Cortex, 4 - Endodermis, 5 - Passage cell, 6 - Pith, 7 - Pericycle, 8 - Metaxylem, 9 - Phloem, 10 - Protoxylem done
clear
C)
1 - Root hair, 2 - Epiblema, 3 - Cortex, 4 - Endodermis, 5 - Pericycle, 6 - Passage cell, 7 - Phloem, 8 - Pith, 9 - Protoxylem, 10 - Metaxylem done
clear
D)
1 - Root hair, 2 - Cortex, 3 - Epiblema, 4 - Pericycle, 5 - Endodermis, 6 - Pith, 7- Passage cell, 8 - Phloem, 9 - Protoxylem, 10 - Metaxylem done
clear
View Solution play_arrow
question_answer 36)
Gaseous exchange between air and internal tissues of old corky stem takes place through:
A)
Pits done
clear
B)
Stomata done
clear
C)
Lenticels done
clear
D)
Sieve plates done
clear
View Solution play_arrow
question_answer 37)
In roots of monocotyledon, the histogen present at the apex of the root tip is:
A)
Dermatogen done
clear
B)
Procambium done
clear
C)
Calyptrogen done
clear
D)
Plerome done
clear
View Solution play_arrow
question_answer 38)
Active divisions occur in the cells of:
A)
Xylem done
clear
B)
Phloem done
clear
C)
Cambium done
clear
D)
Collenchyma done
clear
View Solution play_arrow
question_answer 39)
What happens in plants during vascularisation?
A)
Differentiation of procambium, formation of primary phloem followed by formation of primary xylem. done
clear
B)
Differentiation of procambium followed by the formation of primary phloem and xylem simultaneously. done
clear
C)
Formation of procambium, primary phloem and xylem simultaneously. done
clear
D)
Differentiation of procambium followed by the formation of secondary xylem. done
clear
View Solution play_arrow
question_answer 40)
In Cucurbita, stem vascular bundles are:
A)
Radial done
clear
B)
Collateral done
clear
C)
Concentric done
clear
D)
Bicollateral done
clear
View Solution play_arrow
question_answer 41)
In Bougainvillea, the primary vascular bundles lie scattered. A cambium ring is formed:
A)
from the pericycle done
clear
B)
from intra fascicular cambium done
clear
C)
just outside the primary bundles done
clear
D)
by inter and intra fascicular cambia done
clear
View Solution play_arrow
question_answer 42)
When phloem and cambium are present on both sides of xylem, the vascular bundle is called:
A)
Bicollateral done
clear
B)
Radial done
clear
C)
Concentric done
clear
D)
Collateral done
clear
View Solution play_arrow
question_answer 43)
Which of the following figure is a type of permanent tissue having many different types of cell?
A)
B)
C)
D)
View Solution play_arrow
question_answer 44)
Match column-I with column-II and select the correct answer using the options given below.
Column-I Column-II A. Xylem vessels I. Store food materials B. Xylem tracheids II. Obliterated lumen C. Xylem fibre III. Perforated plates D. Xylem parenchyma IV. Chisel-like ends
A)
A-IV; B-III; C-II; D-I done
clear
B)
A-III; B-II; C-I; D-IV done
clear
C)
A-II; B-I; C-IV; D-III done
clear
D)
A-III; B-IV; C-II; D-I done
clear
View Solution play_arrow
question_answer 45)
Which of the following statement(s) is/are correct?
(i) Uneven thickening of cell wall is characteristic of sclerenchyma. (ii) Periblem forms cortex of the stem and the root. (iii) Tracheids are the chief water transporting elements in gymnosperms. (iv) Companion cell is devoid of nucleus at maturity. (v) The commercial cork is obtained from Quercus suber.
A)
(i) and (iv) only done
clear
B)
(ii) and (v) only done
clear
C)
(iii) and (iv) only done
clear
D)
(ii), (iii) and (v) only done
clear
View Solution play_arrow
question_answer 46)
How many growth rings should be develop per year in a plant grown in Rajasthan with four distinct seasons (viz, summer, rain, winter and spring)?
A)
Four done
clear
B)
Two done
clear
C)
One done
clear
D)
None of these done
clear
View Solution play_arrow
question_answer 47)
Extrastelar secondary growth takes place by:
A)
Vascular cambium done
clear
B)
Phellogen done
clear
C)
Phellem done
clear
D)
Phelloderm done
clear
View Solution play_arrow
question_answer 48)
The cork of commerce comes from:
A)
Quercus suber done
clear
B)
Quercus incana done
clear
C)
Quercus ithaburensis done
clear
D)
All of the above done
clear
View Solution play_arrow
question_answer 49)
The pneumatophores have openings called:
A)
Stomata done
clear
B)
Lenticels done
clear
C)
Hydathodes done
clear
D)
All of these done
clear
View Solution play_arrow
question_answer 50)
Phloem parenchyma are absent in:
A)
Dicots done
clear
B)
Monocots done
clear
C)
Gymnosperms done
clear
D)
All of these done
clear
View Solution play_arrow
question_answer 51)
Match column-I with column-II and choose the correct option.
Column-I Column-II A. Spring wood or wood I. Lighter in colour early B. Autumn wood or late wood II. High density III. Low density IV. Darker in colour V. Larger number of xylem elements VI. Vessels with wider cavity VII. Lesser number of xylem elements VIII. Vessels with small cavity
Which of the following combination is correct?
A)
A - II; IV; VII; VIII; B - I; III; V; VI done
clear
B)
A - I; II; VII; VIII; B - III; IV; V; VI done
clear
C)
A - I; III; V; VI; B - II; IV; VII; VIII done
clear
D)
A - I; III; VII; VIII; B - II; IV; V; VI done
clear
View Solution play_arrow
question_answer 52)
In monocots, root cap is formed by:
A)
Dermatogen done
clear
B)
Calyptrogen done
clear
C)
Wound cambium done
clear
D)
Vascular cambium done
clear
View Solution play_arrow
question_answer 53)
In woody dicotyledons, the arrangement of vessels is either diffuse porous or ring porous. Based on the these data, which one of the following statements is correct?
A)
Ring porous vessels are specialised and are used for conducting more water for a shorter period only, when trioses occur early in the vessels. done
clear
B)
Although diffuse porous vessels are not so specialised as ring porous vessels, they conduct more water at all periods and through new xylem vessels added gradually during development. done
clear
C)
Diffuse porous vessels carry more water and also faster because of a greater number of small vessels having greater capillary force. done
clear
D)
Ring porous vessels conduct more water as they are formed early during development, when the need for water is great. done
clear
View Solution play_arrow
question_answer 54)
Periderm is formed from:
A)
Vascular cambium done
clear
B)
Phellogen done
clear
C)
Fascicular cambium done
clear
D)
Interfascicular cambium done
clear
View Solution play_arrow
question_answer 55)
Annual rings are the bands of:
A)
secondary cortex and cork done
clear
B)
all secondary vascular tissues done
clear
C)
secondary xylem and xylem rays done
clear
D)
secondary phloem and medullary rays done
clear
View Solution play_arrow
question_answer 56)
Secondary growth in the dicot stems is possible because of the presence of:
A)
Xylem done
clear
B)
Phloem done
clear
C)
Cambium done
clear
D)
Medullary rays done
clear
View Solution play_arrow
question_answer 57)
Which of the following meristem is responsible for extrastelar secondary growth in dicotyledonous stem?
A)
Phellogen done
clear
B)
Intra fascicular cambium done
clear
C)
Inter fascicular cambium done
clear
D)
Intercalary meristem done
clear
View Solution play_arrow
question_answer 58)
Periblem form:
A)
Endodermis done
clear
B)
Cortex done
clear
C)
Both (a) and (b) done
clear
D)
Epidermis done
clear
View Solution play_arrow
question_answer 59)
Choose the correct answer for 1 to 6 labelling in the given figure.
A)
1 -Phellem, 2-Phellogen, 3 -Medullary rays, 4 - Secondary xylem, 5 - Secondary phloem, 6 - Cambium ring done
clear
B)
1 -Phellem, 2-Phellogen,3-Medullary rays, 4 - Secondary phloem, 5 - Secondary xylem, 6 - Cambium ring done
clear
C)
1 -Phellogen, 2-Phellem, 3 -Medullary rays, 4 - Secondary xylem, 5 - Secondary phloem, 6 - Cambium ring done
clear
D)
1 -Phellem, 2-Phellogen, 3 -Cambiumring, 4 - Secondary xylem, 5 - Secondary phloem, - Medullary rays done
clear
View Solution play_arrow
question_answer 60)
Identify 1, 2 and 3 in the given figure of shoot apical meristem
A)
1 - Leaf primordium, 2 - Shoot apical meristem, 3 - Axillary bud done
clear
B)
1 - Leaf primordium, 2 - Shoot apical meristem, 3 - Apical bud done
clear
C)
1 - Root hair primordium, 2 - Root apical meristem, 3 - Axillary bud done
clear
D)
1 - Root hair primordium, 2 - Root apical meristem, 3 - Terminal bud done
clear
View Solution play_arrow
question_answer 61)
Select the combination of correct statements from the options given below.
(i) Annual rings are formed as a result of seasonal environmental conditions.
(ii) Tracheid's/vessels elements are larger during periods when water is abundant.
(iii) Tracheid's/vessels elements have thicker wall during periods of water deprivation.
(iv) Wood formed in the previous years is darker than newer wood.
A)
(i) and (ii) done
clear
B)
(ii) and (iv) done
clear
C)
(i), (ii) and (iii) done
clear
D)
(ii), (iii) and (iv) done
clear
View Solution play_arrow
question_answer 62)
When secondary growth is initiated in dicot stem what will happen first?
A)
The cells of cambium divide periclinally to form xylem mother cells. done
clear
B)
Inter fascicular cambium join with intra fascicular cambium. done
clear
C)
Parenchymatous cells present between vascular bundle become meristematic. done
clear
D)
Pith get obliterated. done
clear
View Solution play_arrow
question_answer 63)
Protective layer found at the site of abscission is:
A)
Parenchymatous done
clear
B)
Collenchymatous done
clear
C)
Sclerenchymatous done
clear
D)
Suberised done
clear
View Solution play_arrow
question_answer 64)
Endodermal cells can be distinguished by the presence of:
A)
Cambium cells done
clear
B)
Elongated cells done
clear
C)
Thin-walled cells done
clear
D)
Barrel-shaped cells done
clear
View Solution play_arrow
question_answer 65)
The closing layers in a lenticel may show the deposition of:
A)
Cutin done
clear
B)
Pectin done
clear
C)
Lignin done
clear
D)
Suberin done
clear
View Solution play_arrow
question_answer 66)
Which of the dorsiventral leaf has a multilayered epidermis?
A)
Mulberry done
clear
B)
Banyan done
clear
C)
Nerium done
clear
D)
Eucalyptus done
clear
View Solution play_arrow
question_answer 67)
A meristem may be defined as the group of cells that:
A)
add to the bulk of the plants. done
clear
B)
conserve food. done
clear
C)
divide continuously to give rise to new cells. done
clear
D)
elongate and add to the group of cells. done
clear
View Solution play_arrow
question_answer 68)
Xylem fibre is:
A)
Bast fibre done
clear
B)
Wood fibre done
clear
C)
Heart wood done
clear
D)
Libriform fibre done
clear
View Solution play_arrow
question_answer 69)
The only plant cells without nuclei among following are:
A)
Cambium cells done
clear
B)
Xylem vessels done
clear
C)
Root hairs done
clear
D)
Companion cells done
clear
View Solution play_arrow
question_answer 70)
Totipotency is present in:
A)
Meristem done
clear
B)
Xylem done
clear
C)
Phloem done
clear
D)
Cork done
clear
View Solution play_arrow
question_answer 71)
Collenchyma is present in:
A)
Herbaceous monocots done
clear
B)
Herbaceous dicots done
clear
C)
All herbaceous plants done
clear
D)
Pteridophytes and monocots done
clear
View Solution play_arrow
question_answer 72)
In the given figure of phloem tissue, identify the marked part (1, 2 and 3) which help in maintaining the pressure gradient in the sieve tubes.
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
None of the above done
clear
View Solution play_arrow
question_answer 73)
The given figure shows T.S. of monocot stem. Identify the correct labelling of 1 to 6 marked in the given figure.
A)
1 - Epidermis, 2 - Hypodermis, 3 - Vascular bundles, 4 - Phloem, 5 - Xylem, 6 - Ground tissue done
clear
B)
1 - Cuticle, 2 - Epidermis, 3 - Sclerenchymatous sheath, 4 - Sclerenchymatous hypodermis, 5 - Parenchymatous done
clear
C)
sheath, 6 - Phloem 1 - Cuticle, 2 - Epidermis, 3 - Sclerenchymatous hypodermis, 4 - Sclerenchymatous sheath, 5 - Parenchymatous done
clear
D)
sheath, 6 - Phloem 1 - Cuticle, 2 - Epidermis, 3 - Sclerenchymatous hypodermis, - Sclerenchymatous sheath, 5 - Parenchymatous sheath, 6 - Protoxylem done
clear
View Solution play_arrow
question_answer 74)
Match column-I with column-II and choose the correct option.
Column-I Column-II A. Bull form cells I. Initiation of lateral roots B. Pericycle II. Root C. Endarchxylem III. Grasses D. Exarch xylem IV. Dicot leaf E. Bundle sheath cells V. Stem
A)
A-II; B-V; C-IV; D-I; E-IV done
clear
B)
A-II; B-V; C-I; D-III; E-IV done
clear
C)
A-II; B-IV; C-I; D-III; E-V done
clear
D)
A-III; B-I; C-V; D-II; E-IV done
clear
View Solution play_arrow
question_answer 75)
Which of the following statements are correct about phloem?
(i) Phloem transports food materials, usually from roots to the other parts of the plant. (ii) It is composed of sieve tube elements, companion cells, and phloem parenchyma and phloem fibres. (iii) The companion cells are specialised parenchymatous cells which are closely associated with phloem parenchyma. (iv) The first formed primary phloem consists of narrow sieve tubes and referred to as protophloem and the later formed phloem has bigger sieve tubes and referred to as met phloem.
A)
Both (i) and (iv) done
clear
B)
Both (ii) and (iii) done
clear
C)
Both (ii) and (iv) done
clear
D)
All of the above done
clear
View Solution play_arrow
question_answer 76)
Read the following statements and answer the question.
(i) Cambium is very active and produces a large number of axillary elements having vessels with wider cavities. (ii) It is also called early wood. (iii) It is lighter in colour and has lower density. Which type of wood is described by the above statements?
A)
Sap wood done
clear
B)
Heart wood done
clear
C)
Spring wood done
clear
D)
Autumn wood done
clear
View Solution play_arrow
question_answer 77)
If there is more than one tunica layer in a stem apex, which among the following is most likely to happen?
A)
All the layers will develop into epidermal cells. done
clear
B)
Only the outer layer will develop into epidermal cells. done
clear
C)
All the layers will develop into cortex. done
clear
D)
Inner layer develops into cortex. done
clear
View Solution play_arrow
question_answer 78)
Which type of meristem is an example of vascular cambium of the root?
A)
Apical done
clear
B)
Intercalary done
clear
C)
Secondary done
clear
D)
Root apical done
clear
View Solution play_arrow
question_answer 79)
Which combination of tissues acts together to provide the support to the hypocotyl of seedling?
A)
Xylem and phloem fibres done
clear
B)
Epidermis and parenchyma done
clear
C)
Xylem and parenchyma done
clear
D)
Epidermis and collenchyma done
clear
View Solution play_arrow
question_answer 80)
P-protein belongs to:
A)
Xylem parenchyma done
clear
B)
Trichomes done
clear
C)
Sieve tube elements done
clear
D)
Tracheids and vessels done
clear
View Solution play_arrow
question_answer 81)
The Tunica Corpus Theory was proposed by:
A)
Nageli done
clear
B)
Hanstein done
clear
C)
Schmidt done
clear
D)
Haberlandt done
clear
View Solution play_arrow
question_answer 82)
Diffuse porous woods are characteristic of plants growing in:
A)
Tropics done
clear
B)
Alpine region done
clear
C)
Temperate climate done
clear
D)
Cold winter regions done
clear
View Solution play_arrow
question_answer 83)
T.S. of monocot leaf is given below, certain parts have been marked by alphabets (1 - 7). Which one is the option showing there correct labelling?
A)
1 - Adaxial epidermis, 2 - Xylem, 3 - Mesophyll, 4 - Sub-stomatal cavity, 5 - Abaxial epidermis, 6 - Stoma, 7 - Phloem done
clear
B)
1 - Adaxial epidermis, 2 -Abaxial epidermis, 3 - Xylem, 4 - Sub-stomatal cavity, 5 - Stoma, 6 - Mesophyll, 7 - Phloem done
clear
C)
1 - Adaxial epidermis, 2 - Phloem, 3 - Mesophyll, 4 - Sub-stomatal cavity, 5 - Abaxial epidermis, 6 - Xylem, 7 - Stoma done
clear
D)
1 - Adaxial epidermis, 2 - Xylem, 3 - Stoma, 4 - Sub-stomatal cavity, 5 - Abaxial epidermis, 6 - Phloem, 7 - Mesophyll done
clear
View Solution play_arrow
question_answer 84)
The given figure shows the T.S of dicot root. Some parts are marked as 1, 2, 3, 4, 5, & 6. Choose the option which shows the correct labelling of marked part.
A)
1 - Epiblema, 2 - Root hair, 3 - Cortex, 4 - Endodermis, 5 - Pith, 6 - Pericycle done
clear
B)
1 - Cortex, 2 - Pith, 3 - Epiblema, 4 - Endodermis, 5 - Root hair, 6 - Pericycle ; done
clear
C)
1 - Epiblema, 2 - Endodermis, 3 - Cortex, 4 - Root hair, 5 - Pith, 6 - Pericycle done
clear
D)
1 - Cortex, 2 - Epiblema, 3 - Pith, 4 - Endodermis, 5 - Root hair, 6 - Pericycle done
clear
View Solution play_arrow
question_answer 85)
Which anatomy of plants is being described by the statements given below?
(i) The cortex consists of several layers of thin-walled parenchyma cells with intercellular spaces. (ii) The tangential as well as radial walls of the endodermal cells have a deposition of water-impermeable, waxy materialsuberin, in form of casparian strips. (iii) Secondary growth takes place. (iv) Pith is small or inconspicuous.
A)
Dicotyledonous root done
clear
B)
Monocotyledonous root done
clear
C)
Dicotyledonous stem done
clear
D)
Monocotyledonous stem done
clear
View Solution play_arrow
question_answer 86)
Which of the following statements is correct?
A)
Lenticels occur in most woody trees. done
clear
B)
Sclerenchymatous cells are usually present in cortex. done
clear
C)
The vascular tissue system is divided into three main zones- cortex, pericycle and pith. done
clear
D)
The conjoint vascular bundles usually have the xylem located only on the outer side of the phloem. done
clear
View Solution play_arrow
question_answer 87)
Which one of the following statement is incorrect?
(i) Epidermal cell has small amount of cytoplasm and a large vacuole. (ii) Waxy cuticle layer is absent in roots. (iii) Root hairs are unicellular, while stem hairs/ trichomes are multicellular. (iv) Trichomes may be branched or unbranched, soft or stiff and prevent transpiration. (v) Guard cells are dumbbell shaped in dicots and bean-shaped in monocots (e.g., grass).
A)
Only (i) done
clear
B)
Only (iv) done
clear
C)
Only (iii) done
clear
D)
Only (v) done
clear
View Solution play_arrow
question_answer 88)
Maximum growth in root occurs:
A)
at its tip done
clear
B)
towards light done
clear
C)
behind the apex done
clear
D)
towards apex done
clear
View Solution play_arrow
question_answer 89)
In Aristolochia, the pericycle is:
A)
Parenchymatous done
clear
B)
Collenchymatous done
clear
C)
Aerenchymatous done
clear
D)
Sclerenchymatous done
clear
View Solution play_arrow
question_answer 90)
The concept envisaging three distinct zones of cells of new tissue builders at the stem and root apices is known as:
A)
Tunica corpus theory done
clear
B)
Dermatogen done
clear
C)
Meristem theory done
clear
D)
Histogen theory done
clear
View Solution play_arrow
question_answer 91)
Leaf primordium grows into adult lamina by means of:
A)
Marginal meristem done
clear
B)
Lateral meristem done
clear
C)
First apical and then marginal meristems done
clear
D)
Apical meristem done
clear
View Solution play_arrow
question_answer 92)
The tracheids differ from vessels in having:
A)
Thick wall done
clear
B)
Bordered pit done
clear
C)
Presence of pitted end wall done
clear
D)
Spiral thickening done
clear
View Solution play_arrow
question_answer 93)
Embryo of a seed is made up of:
A)
Meristematic tissue done
clear
B)
Parenchyma done
clear
C)
Collenchyma done
clear
D)
Sclerenchyma done
clear
View Solution play_arrow
question_answer 94)
Non-porous wood is found in:
A)
Dicots done
clear
B)
Monocots done
clear
C)
Gymnosperm done
clear
D)
Cactus done
clear
View Solution play_arrow
question_answer 95)
Most distinct annual rings are formed in:
A)
Tropical region done
clear
B)
Temperate region done
clear
C)
Arctic region done
clear
D)
Equatorial region done
clear
View Solution play_arrow
question_answer 96)
Which will decay faster if exposed freely to the air?
A)
Heartwood done
clear
B)
Sapwood done
clear
C)
Wood with lots of fibres done
clear
D)
Softwood done
clear
View Solution play_arrow
question_answer 97)
Diffuse porous woods are characteristic of plants growing in:
A)
Tropics done
clear
B)
Alpine region done
clear
C)
Temperate climate done
clear
D)
Cold winter regions done
clear
View Solution play_arrow
question_answer 98)
Which one of the followings option is correct for a lenticel?
A)
1 - Pore, 2 - Secondary cortex, 3 - Cork cambium, 4 - Cork, 5 - Complimentary cells done
clear
B)
1 - Pore, 2 - Cork cambium, 3 - Secondary cortex, 4 - Cork, 5 - Complimentary cells done
clear
C)
1 - Pore, 2 - Cork, 3 - Complimentary cells, 4 - Cork cambium, 5 - Secondary cortex done
clear
D)
1 - Pore, 2 - Complimentary cells, 3 - Cork, 4 - Cork cambium, - Secondary cortex done
clear
View Solution play_arrow
question_answer 99)
Which of the following pair is incorrectly matched?
A)
Pith - Large and well developed in monocotyledonous root. done
clear
B)
Root hairs - Helps in preventing water loss due to transpiration. done
clear
C)
Sieve tube elements - Its functions are controlled by the nucleus of companion cells. done
clear
D)
Stomatal apparatus - Consists of stomatal aperture, guard cells and surrounding subsidiary cells. done
clear
View Solution play_arrow
question_answer 100)
Read the following statements and answer the questions.
(i) It is made up of elongated, tapering cylindrical cells which have dense cytoplasm and nucleus. (ii) The cell wall is composed of cellulose and has pits through which Plasmodesmata connections exist between the cells. (iii) It is absent in most of the monocotyledons. Which part of plant tissue is being described by the above statements?
A)
Sieve tube elements done
clear
B)
Companion cells done
clear
C)
Phloem parenchyma done
clear
D)
Phloem fibres done
clear
View Solution play_arrow
question_answer 101)
Match column-I with column-II and select the correct option from the codes given below.
Column-I Column-II A. Stele I. Innermost layer of cortex B. Endodermis II. Suberin C. Caesarian III. All the tissues exterior to vascular cambium D. Bark IV. All the tissues
A)
A-IV; B-I; C-II; D-III done
clear
B)
A-III; B-II; C-I; D-IV done
clear
C)
A-I; B-II; C-III; D-IV done
clear
D)
A-IV; B-II; C-I; D-III done
clear
View Solution play_arrow
question_answer 102)
The quiescent centre in root meristem serves as:
A)
region for absorption of water. done
clear
B)
reservoir of growth hormones. done
clear
C)
reserve for replenishment of damaged cells of the meristem. done
clear
D)
site for storage of food which is utilised during maturation. done
clear
View Solution play_arrow
question_answer 103)
Root cap is not found in:
A)
Lithophytes done
clear
B)
Xerophytes done
clear
C)
Hydrophytes done
clear
D)
Mesophytes done
clear
View Solution play_arrow
question_answer 104)
Identify the types of simple tissue indicated by 1, 2, 3 and 4 and their function.
A)
1 - Parenchyma; Photosynthesis, Storage and Secretion. done
clear
B)
2 - Sclerenchyma, Sclereid; Transport food material. done
clear
C)
3 - Collenchyma; Provides mechanical support to organs. done
clear
D)
4 - Sclerenchyma Fibres; Provide mechanical support to the growing parts of the plant such as young stem and petiole of a leaf. done
clear
View Solution play_arrow
question_answer 105)
Lignin is a component of the secondary cell walls of:
A)
Epidermis done
clear
B)
Collenchyma done
clear
C)
Sclerenchyma done
clear
D)
Parenchyma done
clear
View Solution play_arrow
question_answer 106)
Collenchyma differs from Sclerenchyma in:
A)
having sclereids done
clear
B)
having thick walls done
clear
C)
having inside lumen done
clear
D)
retaining protoplasm at maturity done
clear
View Solution play_arrow
question_answer 107)
"Bast-fibers" obtained from which part of woody stem?
A)
Cork done
clear
B)
Cortex done
clear
C)
Xylem done
clear
D)
Phloem done
clear
View Solution play_arrow
question_answer 108)
In trees, the growth rings represent:
A)
Primary xylem done
clear
B)
Secondary xylem done
clear
C)
Secondary phloem done
clear
D)
Cambium done
clear
View Solution play_arrow