7th Class Science Reproduction In Plants Question Bank

done Reproduction and Growth in Plants Total Questions - 40

• question_answer1)
  Which of the following plants reproduce in the same way as sugarcane?

  (i) Bryophyllum

  (ii) Rose

  (iii) Hibiscus

  A)
   (i) and (ii) only done clear
  B)
   (i) and (iii) only done clear
  C)
   (ii) and (iii) only done clear
  D)
   (i), (ii) and (iii) done clear
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• question_answer2)
  Which of these labelled parts form the carpel?
  A)
   P and Q only done clear
  B)
   P, Q and R only done clear
  C)
   S and T only done clear
  D)
   S, T and R only done clear
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• question_answer3)
  Why must seeds be dispersed far away from the parent plant?

  (i) To ensure the survival of the species

  (ii) to avoid competition for sunlight

  (iii) Because plants can move by themselves

  (iv) To ensure plants obtain sufficient space for growth

  A)
    (i) and (ii) only done clear
  B)
   (iii) and (iv) only done clear
  C)
   (i), (ii) and (iv) only done clear
  D)
   (i), (ii), (iii) and (iv) done clear
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• question_answer4)
  What happens after the given stage?
  A)
   The ovary splits open. done clear
  B)
   Ovary develops into a fruit and ovules into seeds. done clear
  C)
   The ovules are dispersed. done clear
  D)
   Germination of seeds take place. done clear
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• question_answer5)
  Abhi cut the potato into sections as shown below. Which section(s) will NOT produce new plants?
  A)
   P only done clear
  B)
   Q and R on done clear
  C)
   Q and S only done clear
  D)
   P and R only done clear
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• question_answer6)
  Which type of reproduction is shown in the diagram given below?
  A)
   Binary fission done clear
  B)
   Fragmentation done clear
  C)
   Sporulation done clear
  D)
   Bidding done clear
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• question_answer7)
  The table given below shows the various ways in which plants reproduce.

  Plants	Ways of Reproduction
  Xanthium	Z
  X	Spores
  Potato	Y

  Which of the following would you place in X, Y and Z?      
  A)

  X	Y	Z
  Seeds	Suckers	Spores

        done clear
  B)

  X	Y	Z
  Maple	Eyes	Seeds

        done clear
  C)

  X	Y	Z
  Mucor	Eyes	Seeds

                  done clear
  D)

  X	Y	Z
  Drumstick	Spores	Suckers

  done clear
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• question_answer8)
  Which organism is described in the information given below?

  (i) Respire anaerobically

  (ii) Used to make wine

  (iii) Reproduces by budding

  A)
   Potato                                 done clear
  B)
   Grapes done clear
  C)
   Yeast                    done clear
  D)
          Mucor done clear
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• question_answer9)
  Which of the following parts of the flower shown below are the anther and stigma respectively?
  A)
   K, L                                        done clear
  B)
   L, M                      done clear
  C)
          M, N                                     done clear
  D)
   N, K done clear
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• question_answer10)
  A Which of the following seeds is NOT dispersed by wind?
  A)
   P                                            done clear
  B)
   Q            done clear
  C)
   R        done clear
  D)
   S done clear
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• question_answer11)
  Arrange the sentences given below in order to describe the process of fertilization.

  W: The pollen tube grows down through the style reaches the ovary.

  X: The pollen grain germinates on reaching the stigma.

  Y: The male gamete moves into the ovule to fuse with the ovum.

  Z: The pollen tube grows out from the pollen.

                  Which of these options are in the correct order?
  A)
   WXYZ                   done clear
  B)
          XZWY   done clear
  C)
   YWZX                   done clear
  D)
          WZXY done clear
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• question_answer12)
  Which of these plants undergo vegetative reproduction?
  A)
   Tomato, lady's-finger, onion, cauliflower. done clear
  B)
   Potato, ginger, onion, sugarcane. done clear
  C)
   Cauliflower, onion, potato, tomato. done clear
  D)
   Lady's-finger, onion, ginger, sugarcane. done clear
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• question_answer13)
  Which of the following is not a characteristic feature of wind pollinated flower?
  A)
   Flowers produce huge quantities of pollens. done clear
  B)
   Petals are brightly coloured and showy. done clear
  C)
   Pollen grains are light and non-sticky. done clear
  D)
   Stamens are well exposed. done clear
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• question_answer14)
  Which of these coloured labelled part of the flower attracts bees and butterflies to help it to pollinate?
  A)
   (i)                                           done clear
  B)
   (ii)                          done clear
  C)
          (iii)                         done clear
  D)
          (iv) done clear
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• question_answer15)
  The given figure illustrates a stage during reproduction in flowering plants. What is structure X?
  A)
   An ovule before pollination, but after fertilization. done clear
  B)
   An ovule before fertilization, but after pollination. done clear
  C)
   A pollen grain before pollination, but after fertilization. done clear
  D)
   A pollen grain before fertilization, but after pollination. done clear
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• question_answer16)
  Look at the diagram of fruits P and Q. Fruit P has thick and juicy flesh, fruit Q is covered with stiff hairs. The fruits P and Q are likely to be dispersed by which of the following dispersal agents?
  A)
   Wind                                    done clear
  B)
   Water  done clear
  C)
   Animals               done clear
  D)
          Splitting done clear
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• question_answer17)
  The diagram shows the structure of a flower. Where do pollination and fertilization take place?
  A)
   Pollination-X; Fertilization-Y done clear
  B)
   Pollination-Y; Fertilization-X done clear
  C)
   Pollination-Y; Fertilization-Z done clear
  D)
   Pollination-Z; Fertilization-Y done clear
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• question_answer18)
  The box given below shows four different fruits. Which two fruits are dispersed by animals?
  A)
   (i) and (ii)                            done clear
  B)
   (i) and (iii)           done clear
  C)
   (ii) and (iv)         done clear
  D)
          (iii) and (iv) done clear
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• question_answer19)
  Which of the following grow into a new plant in mushroom and mucor?
  A)
   Spores                                 done clear
  B)
   Roots   done clear
  C)
          Seeds                   done clear
  D)
          Cuttings done clear
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• question_answer20)
  Which of the following options define the term vegetative reproduction?
  A)
   Fertilization of stamens and stigma through pollen grains. done clear
  B)
   Development of new plant from spores when favorable conditions are provided. done clear
  C)
   Reproduction of new plants from any part of a plant other than the reproductive organs. done clear
  D)
   Reproduction of a plant from reproductive organs. done clear
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• question_answer21)
  Onions and gladiola grow from which of the following parts?
  A)
   Bulbs done clear
  B)
   Roots done clear
  C)
   Buds on the leaf margin done clear
  D)
   Spores done clear
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• question_answer22)
  In potatoes, new plants grow from which of the following parts of the stems?
  A)
   Bulbs of the modified stems. done clear
  B)
   Buds on the leaflets. done clear
  C)
   Modified roots. done clear
  D)
   Eyes of the modified stems. done clear
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• question_answer23)
  Which of the following takes place during fertilization in angiosperms?
  A)
   Fusion of two dissimilar flowers. done clear
  B)
   Union of stamens of unequal length. done clear
  C)
   Fusion of two dissimilar gametes. done clear
  D)
   Fusion of two similar pores. done clear
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• question_answer24)
  Bryophyllum grows from which of the following parts of a plant?
  A)
   Bulbs of the modified stems. done clear
  B)
   Eyes on the tuberous roots. done clear
  C)
   Outgrowths from the modified roots. done clear
  D)
   Leaf buds on the modified leaves. done clear
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• question_answer25)
  Which of the following constitute a pistil?
  A)
   Stigma, anther and ovary. done clear
  B)
   Stigma, stamen and ovary. done clear
  C)
   Pollen sac, style and ovule. done clear
  D)
   Stigma, style and ovary.        done clear
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• question_answer26)
  Identify the process X and 'Y? the figure given below.
  A)
   X-cross pollination Y-self pollination done clear
  B)
   X-self pollination Y-cross pollination done clear
  C)
   X-Dispersal Y-Fertilization done clear
  D)
   X-Germination, Y-Dispersion done clear
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• question_answer27)
  The figure given below represents which of the following processes?
  A)
   Growth                               done clear
  B)
   Germination     done clear
  C)
   Fertilization       done clear
  D)
          Dispersion done clear
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• question_answer28)
  Which of the following statements is true about sticky stigma?
  A)
   To produce scents to attract birds and insects. done clear
  B)
   To hold pollen grain strongly. done clear
  C)
   There is no known function. done clear
  D)
   To attract bees. done clear
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• question_answer29)
  Which organism multiplication makes the dough to rise?
  A)
   Yeast                                    done clear
  B)
   Mucor  done clear
  C)
   Moss                    done clear
  D)
          Mould done clear
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• question_answer30)
  In which of the following modes of reproduction an individual produces offspring without the help of another individual?
  A)
   Sexual reproduction done clear
  B)
   Hybridisation done clear
  C)
   Fertilization done clear
  D)
   Asexual reproduction done clear
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• question_answer31)
  A Moringa (drum stick) seeds are dispersed by wind due to the presence of which of the following features?
  A)
   Wings                                   done clear
  B)
   Pappus                done clear
  C)
   Hairy tuft            done clear
  D)
          All the above done clear
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• question_answer32)
  Which of the following dispersal mechanisms disperse xanthium seeds?
  A)
   Wind done clear
  B)
   Animals done clear
  C)
   Water done clear
  D)
   Explosion mechanism done clear
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• question_answer33)
  Which of the following labelled figure is/ are NOT an example of vegetative propagation?
  A)
   P only done clear
  B)
   Q only done clear
  C)
   R and S only done clear
  D)
   P, Q and R only done clear
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• question_answer34)
  Which of the following processes is represented by the figure given below?
  A)
   Fission in yeast done clear
  B)
   Fragmentation in yeast done clear
  C)
   Budding in yeast done clear
  D)
   Sporeformation in yeast done clear
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• question_answer35)
  Which of the following are the characteristic feature of fruits dispersed by animals?
  A)
   Hooked and spiny done clear
  B)
   Dry and light done clear
  C)
   Light and powdery done clear
  D)
   Unattractive done clear
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• question_answer36)
  The female organ of a flower is called the pistil. Which of the following is not a part of the pistil?
  A)
   Stigma done clear
  B)
   Style done clear
  C)
   Pollen grains done clear
  D)
   Ovary with ovules done clear
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• question_answer37)
  The landing of pollen grains on the stigma marks the end of which of the following processes?
  A)
   Fertilization                       done clear
  B)
   Pollination          done clear
  C)
          Ovulation           done clear
  D)
          Germination                     done clear
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• question_answer38)
  Which of the following is not a vegetatively propagated plant?
  A)
   Bryophyllum     done clear
  B)
   Hibiscus               done clear
  C)
   Sugar cane         done clear
  D)
          Cotton plant done clear
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• question_answer39)
  Which of the following have fruits that have a parachute of hair called pappus?
  A)
   Maple and xanthium done clear
  B)
   Madar and sunflower done clear
  C)
   Balsam and beans done clear
  D)
   Mango and coconut done clear
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• question_answer40)
  Where does fertilization occur in flowers?
  A)
   Stigma                                 done clear
  B)
   Style done clear
  C)
          Ovary                   done clear
  D)
          Pollen grain done clear
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