Class 7 Science Chapter 8 MCQ Reproduction in Plants
MCQ on Reproduction in Plants Class 7
I. Multiple Choice Questions (1 Mark)
Select and write the most appropriate option out of the four options given
Question 1.
A …………… plant can reproduce through the cutting of its branch.
A) rose
B) ginger
C) dahlia
D) potato
Answer:
A) rose
Question 2.
Which of the following reproduces through spores ?
A) Moss
B) Bryophyllum
C) Yeast
D) Spirogyra
Answer:
A) Moss
Question 3.
……………. is a method of vegetative propagation of asexual reproduction.
A) Fragmentation
B) Cutting
C) Budding
D) Spore formation
Answer:
B) Cutting
Question 4.
Which of the following reproduces through vegetative buds?
A) Fern
B) Moss
C) Bryophyllum
D) Dahlia
Answer:
C) Bryophyllum
Question 5.
The scars on the potato are also called
A) buds
B) eyes
C) spores
D) fruits
Answer:
B) eyes
Question 6.
Spore forming bodies present in plants are called
A) eyes
B) buds
C) sori
D) sporangium
Answer:
C) sori
Question 7.
Spirogyra reproduces asexually by the process of
A) budding
B) fragmentation
C) binary fission
D) regeneration
Answer:
B) fragmentation
Question 8.
Read the following statements.
i) Bryophyllum has buds in the margins of leaves.
ii) Eye of potato tuber represents a node which contains buds.
iii) New plants cannot be grown from roots.
iv) Plants produced by vegetative propagation take more time to grow than those produced from seeds.
Which of the above statements are true?
A) (i) and (ii)
B) (iii) and (iv)
C) (i) and (iii)
D) (i) (ii) and (iv)
Answer:
D) (i) (ii) and (iv)
Question 9.
In which of the following, new plants cannot grow from eyes/buds? [ ]
A) Turmeric
B) Ginger
C) Potato
D) Sweet potato
Answer:
B) Ginger
Question 10.
……….. plant can reproduce asexually with the help of its roots.
A) Rose
B) Dahlia
C) Bryophyllum
D) Turmeric
Answer:
B) Dahlia
Question 11.
Which of the following do not produce unisexual flowers?
A) Corn
B) Mustard
C) Papaya
D) Cucumber
Answer:
B) Mustard
Question 12.
Female reproductive part of a flower is called a/an
A) stamen
B) pistil
C) style
D) anther
Answer:
B) pistil
Question 13.
Which of the following flowers do not have both stamen and pistil?
A) Rose
B) Petunia
C) Cucumber
D) Mustard
Answer:
C) Cucumber
Question 14.
Which is not a part of pistil?
A) Stigma
B) Anther
C) Style
D) Ovary
Answer:
B) Anther
Question 15.
Observe the image given below and select the correct option for A and B. [ ]
A) A-Cross-pollination, B – Cross-pollination
B) A-Self-pollination, B – Cross-pollination
C) A-Cross-pollination, B – Self-pollination
D) A-Self-pollination, B – Self-pollination
Answer:
B) A-Self-pollination, B – Cross-pollination
Question 16.
Fertilization occurs in plant when
A) pollen grain leaves the anther
B) pollen grain lands on stigma
C) an insect sits on a plant
D) male gamete fuses with the female gamete
Answer:
D) male gamete fuses with the female gamete
Question 17.
Self-pollination is the transfer of pollen grains from anthers
A) to stigma of a flower of different plants.
B) to stigma of same flower.
C) to stigma of another flower on the same plant.
D) both (B) and (C)
Answer:
B) to stigma of same flower.
Question 18.
Identify the labels P, Q and R and select the correct option.
Answer:
(A)
Question 19.
Which of the following changes into a fruit after fertilization?
A) Pollen
B) Ovules
C) Ovary
D) Anther
Answer:
C) Ovary
Question 20.
……….. are hard fruits.
A) Mango and apple
B) Almond and walnut
C) Mango and orange
D) Almond and apple
Answer:
B) Almond and walnut
Question 21.
The seed contains the
A) zygote
B) ovule
C) embryo
D) pollen
Answer:
C) embryo
Question 22.
Seeds of ………. plant disperse through water.
A) maple
B) coconut
C) Xanthium
D) castor
Answer:
B) coconut
Question 23.
Seeds and fruits of plants are carried away to different places by
A) wind
B) water
C) animals
D) all of these
Answer:
D) all of these
Question 24.
Winged seeds are found in
A) Xanthium
B) Castor
C) Sunflower
D) Maple
Answer:
D) Maple
Question 25.
Seeds of ………… have fibrous outer coat that help them to float in water.
A) coconut
B) Castor
C) Mango
D) Pineapple
Answer:
A) coconut
Question 26.
A plant was found to have seeds with hooks. By which method is it most likely to be . dispersed?
A) Wind
B) Water
C) Animals
D) Explosion of fruit
Answer:
C) Animals
Question 27.
Some pupils wanted to find out if overcrowding affected the growth of plants. They set-up two experiments as shown below in the garden. They did not conduct a fair test because
A) the number of plants in both the pots should be the same
B) the type of soil used in both the pots should be the same
C) the size of the pots used should be different
D) the place where the pots were placed should be different.
Answer:
B) the type of soil used in both the pots should be the same
Question 28.
The given figure illustrates a stage during sexual reproduction in flowering plants. What is structure X ?
A) An ovule before pollination, but after fertilization.
B) An ovule before fertilization, but after pollination.
C) A pollen grain before pollination, but after fertilization.
D) A pollen grain before fertilization, but after pollination.
Answer:
D) A pollen grain before fertilization, but after pollination.
Question 29.
The method shown in the given figure belongs to
A) sexual reproduction.
B) asexual reproduction.
C) vegetative propagation.
D) both (B) and (C)
Answer:
D) both (B) and (C)
Question 30.
Which of the following events in the reproduction in flowering plants can be carried out by a butterfly?
A) Germination
B) Fertilisation
C) Pollination
D) Seed formation
Answer:
C) Pollination
Question 31.
Study the given figure and select the incorrect statement regarding it.
A) It is a bisexual flower
B) This flower contains eight stamens
C) This flower contains a single pistil
D) It is an incomplete flower.
Answer:
D) It is an incomplete flower.
Question 32.
Given figure represents the method of reproduction in bread mould. Select the correct option for X, Y and Z.
Answer:
(B)
II. Fill in the blanks
1. Stems, leaves and roots of a plant are called its ………… parts.
Answer: Vegetative
2. A ………… is a part of the stem or branch at which a leaf arises.
Answer: node
3. Yeast cells reproduces through …………
Answer: budding
4. In asexual reproduction, new plants are obtained without production of …………
Answer: seeds
5. ………… and ………… buds are the vegetative buds that can give rise to new plants.
Answer: flower, leaf
6. Spirogyra is a/an …………
Answer: alga
7. Production of new individuals from their parents is called …………
Answer: reproduction
8. ………… is a single-celled organism which can reproduce by budding.
Answer: yeast
9. ………… are called the reproductive part of a plant.
Answer: flowers
10. Fusion of male and female gametes result into the formation of ………… .
Answer: zygote
11. The female gamete is also known as …………
Answer: egg
12. ………… can be carried away by wind, water and animals.
Answer: pollen grains
13. During self ………… pollens of a flower lands on the stigma of the same flower.
Answer: pollination
14. Zygote develops into a/an …………
Answer: embryo
15. Petunia is an’ example of ………… flower
Answer: bisexual
16. Pollen grain have a tough protective ………… which prevents them from drying up.
Answer: coat
17. The flowers which have either the pistil or the stamen are called ………… flowers.
Answer: unisexual
18. Seeds of Urena plants are dispersed by …………
Answer: animals
19. Fruits of sunflower are ………… so easily blown off with the wind.
Answer: hairy
20. Castor seeds are dispersed by …………
Answer: explosion (or) sudden jerk
21. Drumsticks have ………… seeds which help in their dispersal.
Answer: (or) sudden jerk
22. Seeds of Xanthium have ………… that get attached to the body of animals.
Answer: hocks
23. The method of reproduction that involves only one parent is called ………… .
Answer: asexual reproduction
24. Formation of seeds occurs in ………… reproduction in plants.
Answer: sexual
25. In grafting, the ………… is placed over the …………
Answer: scion, stock
26. Unisexual flowers are also called ………… flowers.
Answer: incomplete
27. Growth in plants occur only at those places where ………… are present.
Answer: buds
28. ………… is a sweet liquid produced by flowers that attract insects.
Answer: nector
29. Bisexual flowers are ………… flowers.
Answer: complete
III. True Or False
1. During asexual reproduction, new individuals are produced from a single parent. [ ]
Answer: True
2. In vegetative propagation, some of the parental characteristics are absent in the new plants.
Answer: False
3. Plants produced by vegetative propagation do not bear flowers and fruits.
Answer: True
4. Reproduction in plants take place both sexually and asexually.
Answer: True
5. One parent is involved in sexual reproduction.
Answer: False
6. Vegetative propagation is a type of asexual reproduction.
Answer: True
7. Spores are asexual reproductive bodies.
Answer: True
8. In Dahlia, reproduction takes place through leaf buds.
Answer: False
9. Buds in the axil of leaves can give rise to new plants.
Answer: True
10. In cross pollination, pollen grains are transferred from anther of one flower to the stigma of the same flower.
Answer: False
11. Fertilisation leads to formation of the zygote.
Answer: True
12. The pistil of a flower consists of anther and filament.
Answer: False
13. The male gametes are produced inside pollen grains and the female gametes are produced inside the ovule.
Answer: True
14. Anther is the part of a flower that attracts insects.
Answer: False
15. Insects help during the process of self-pollination only.
Answer: False
16. Almonds have hard seed coat.
Answer: True
17. After fertilization, all parts of the flower including the ovary falls off.
Answer: False
18. Orange do not have seeds with seed coat.
Answer: True
19. Embryo is protected inside the seed by a hard seed coat.
Answer: False
20. Pollination in Hydrilla is carried out by water.
Answer: True
21. Brightly coloured flowers that produce nectar are mainly pollinated by wind.
Answer: False
22. Complete flowers have both pistil and stament.
Answer: True
23. Mango and apple are fleshy and juicy fruits.
Answer: True
24. Sexually produced offsprings have a mixture of parental genes.
Answer: True
25. Embryo remains in the resting stage inside the seed until germination.
Answer: True
26. Embryo inside the seed can grow only in the presence of moisture, oxygen and warmth.
Answer: True
27. Ovules grow into seeds and ovary grows into the fleshy seed coat in plants like mango.
Answer: False
28. Stigma produces the pollen tube that connects pollen in anther with the ovules present inside the ovary.
Answer: False