CBSE Class 7 Science - MCQ and Online Tests - Unit 12 - Reproduction in Plants

CBSE Class 7 Science – MCQ and Online Tests – Unit 12 – Reproduction in Plants

 

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CBSE Class 7 Science – MCQ and Online Tests – Unit 12 – Reproduction in Plants

Choose the correct answer:

Question 1.
Seeds of drumstick and maple are carried to long distances by wind because they possess
(a) winged seeds
(b) large and hairy seeds
(c) long and ridged fruits
(d) spiny seeds

Answer

Answer: (a) winged seeds

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Question 2.
Which of the following statements is/are true for sexual reproduction in plants?
(i) Plants are obtained from seeds
(ii) Two plants are always essential
(iii) Fertilisation can occur only after pollination
(iv) Only insects are agents of pollination
Choose from the options given below:
(a) (i) and (ii)
(b) (i) only
(c) (i) and (ii)
(d) (i) and (iv)

Answer

Answer: (a) (i) and (ii)

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Question 3.
Lila observed that a pond with clear water was covered up with a green algae within a week. By which method of reproduction did the algae spread so rapidly ?
(a) Budding
(b) Sexual reproduction
(c) Fragmentation
(d) Pollination

Answer

Answer: (c) Fragmentation

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Question 4.
In which of the following plants buds are present on the margins of leaves?
(a) Bryophyllum
(b) Touch me not
(c) Chandan
(d) Coriander

Answer

Answer: (a) Bryophyllum

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Question 5.
In yeasts reproduction occurs by
(a) fragmentation
(b) binary fission
(c) budding
(d) spore formation

Answer

Answer: (c) budding

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Question 6.
Vegetative propagation in potato takes place by
(a) leaves
(b) stem
(c) root
(d) seed

Answer

Answer: (b) stem

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Question 7.
Which of the following parts of a plant take part in sexual reproduction?
(i) Flower
(ii) Seed
(iii) Fruit
(iv) Branch
Choose the correct answer from below:
(a) (i) and (ii)
(b) (i), (ii) and (iii)
(c) (iii) and (iv)
(d) (ii), (iii) and (iv)

Answer

Answer: (b) (i), (ii) and (iii)

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Question 8.
Pollination refers to the:
(a) transfer of pollen from anther to ovary
(b) transfer of male gametes from anther to stigma
(c) transfer of pollen from anther to stigma
(d) transfer of pollen from anther to ovule

Answer

Answer: (c) transfer of pollen from anther to stigma

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Question 9.
The ‘eye of the potato plant is what
(a) the root is to any plant
(b) the bud is to a flower
(c) the bud is to Bryophyllum leaf
(d) the anther is to stamen

Answer

Answer: (c) the bud is to Bryophyllum leaf

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Question 10.
The ovaries of different flowers may contain
(a) only one ovule
(b) many ovules
(c) one to many ovules
(d) only two ovules

Answer

Answer: (c) one to many ovules

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