Here we are providing Class 7 Science Objective Chapter – 6 Physical and Chemical Changes because its very important for Class 6 students as we all know that every board exam question has MCQs so that students should practice these questions so that students can get good marks in board. Class 7 Science Objective Chapter – 6 Physical and Chemical Changes is an extremely important and its also a year in which students learn the fundamentals of concepts that help them lay a solid foundation for their higher education. Here we are providing in Class Class 7 Science Objective Chapter –6 Physical and Chemical Changes 100+ questions so that students practice more and more. If you want class wise Notes Then Click Here
Class 7 Science Objective Chapter – 12 Reproduction in Plants
1.Plants produced by vegetative propagation take
( A ) long time to grow
( B ) less time to grow
( C ) both ( A ) and (b)
( D ) none of these
Ans – ( B )
2.Vegetative propagation in potato takes place by
( A ) leaves
( B ) stem
( C ) root
( D ) seed
Ans – ( B )
3.Bisexual flowers are those flowers which have both:
( A ) pollen grains and stamens
( B ) stamens and pistils
( C ) ovary and pollen grains
( D ) pistils and ovary
Ans – ( B )
4.Part of the plant that take part in sexual reproduction is
( A ) seed
( B ) fruit
( C ) flower
( D ) branch
Ans – ( C )
5.In which of the following plants buds are present on the margins of leaves?
( A ) Bryophyllum
( B ) Touch me not
( C ) Chandan
( D ) Coriander
Ans – ( A )
6.The plants which have unisexual flowers are:
( A ) torai
( B ) lauki
( C ) pumpkin
( D ) all of these
Ans – ( D )
7.In yeasts reproduction occurs by
( A ) fragmentation
( B ) binary fission
( C ) budding
( D ) spore formation
Ans – ( C )
8.Vegetative propagation in sweet potato takes place by
( A ) root
( B ) leaves
( C ) seed
( D ) stem
Ans – ( A )
9.Seeds and fruits are formed by:
( A ) ovary forms fruits and ovules form seeds
( B ) ovary forms seeds and ovules form fruits
( C ) pollen grains form seeds and anther forms fruit
( D ) pollen grains form fruits and anther forms seed.
Ans – ( A )
10.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)
Ans – ( A )
11.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
Ans – ( C )
12.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
Ans – ( C )
13.The male reproductive part is:
( A ) pistil
( B ) stamen
( C ) ovary
( D ) flower
Ans – ( B )
14.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
Ans – ( A )
15.Vegetative propagation is a type of
( A ) asexual reproduction
( B ) sexual reproduction
( C ) binary fission
( D ) none of these
Ans – ( A )
16.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
Ans – ( C )
17.The flowers which contain either pistil or stamens are called:
( A ) bisexual flowers
( B ) sexual flowers
( C ) unisexual flowers
( D ) pollination flower
Ans – ( C )
18.The ovaries of different flowers may contain
( A ) only one ovule
( B ) many ovules
( C ) one to many ovules
( D ) only two ovules
Ans – ( C )
19.The ovaries of different flowers may contain
( A ) only one ovule
( B ) many ovules
( C ) one to many ovules
( D ) only two ovules
Ans – ( C )
20.Female reproductive part is:
( A ) stamen
( B ) pollen grain
( C ) bud
( D ) pistil
Ans – ( D )
21.Yeasts reproduce by
( A ) fragmentation
( B ) budding
( C ) vegetative propagation
( D ) layering
Ans – ( B )
22.The flowers which contain both stamens and pistils are:
( A ) unisexual flowers
( B ) bisexual flowers
( C ) sexual flowers
( D ) asexual flowers
Ans – ( B )
23.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)
Ans – ( A )
24.In fungus, reproduction takes place by
( A ) budding
( B ) spore formation
( C ) fragmentation
( D ) binary fission
Ans – ( B )
25.The process in which plant can give rise to new plants without seeds is called:
( A ) asexual reproduction
( B ) sexual reproduction
( C ) pollination
( D ) fragmentation
Ans – ( A )
26.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
Ans – ( C )
27.Spirogyra reproduces asexually by
( A ) spore formation
( B ) fragmentation
( C ) budding
( D ) cutting
Ans – ( B )
28.are formed in fungi:
( A ) Pollen grains
( B ) Seeds
( C ) Buds
( D ) Spores
Ans – ( D )
29.In fern, asexual reproduction takes place through
( A ) spore formation
( B ) fragmentation
( C ) budding
( D ) binary fission
Ans – ( A )
30.The production of new individuals from their parents in known as:
( A ) pollination
( B ) reproduction
( C ) fertilisation
( D ) fragmentation
Ans – ( B )
31.Which of the following contains male gamete?
( A ) Filament
( B ) Ovule
( C ) Pollen
( D ) Anther
Ans – ( C )
32.The process in which new plants are produced from different vegetative parts such as leaves, stems and roots is called:
( A ) reproduction
( B ) fragmentation
( C ) vegetative propogation
( D ) fertilisation
Ans – ( C )
33.The zygote develops into
( A ) a seed
( B ) an ovule
( C ) a fruit
( D ) an embryo
Ans – ( D )
34.A small bulb like projection, which comes out of yeast all is called:
( A ) bud
( B ) spores
( C ) zygete
( D ) flower
Ans – ( A )
35.Which of the following plant bear bisexual flower?
( A ) Corn
( B ) Papaya
( C ) Cucumber
( D ) Mustard
Ans – ( D )
36.A division of elongated parent cell into two daughter cell is called:
( A ) fragmentation
( B ) pollination
( C ) binary fission
( D ) fertilisation
Ans – ( C )
37.Which of the following is a part of a pistil?
( A ) Stigma
( B ) Anther
( C ) Filament
( D ) Pollen
Ans – ( A )
38.Splitting up of filaments of algae in two or more than two parts is called:
( A ) fertilisation
( B ) fragmentation
( C ) pollination
( D ) reproduction
Ans – ( B )
39.Which of the following is not a part of pistil?
( A ) Ovary
( B ) Ovule
( C ) Anther
( D ) Style
Ans – ( C )
40.In sexual reproduction, a male and a female gametes fuse to form a:
( A ) flower
( B ) fungi
( C ) spore
( D ) zygote
Ans – ( D )
41.Which of the following is not a vegetative plant part?
( A ) Root
( B ) Stem
( C ) Flower
( D ) Leaf
Ans – ( C )
42.The transfer of pollen from the anther to the stigma of a flower is called:
( A ) fragmentation
( B ) fertilisation
( C ) pollination
( D ) reproduction
Ans – ( C )
43.After fertilisation, ovule develops into
( A ) fruit
( B ) stem
( C ) root
( D ) seed
Ans – ( D )
44.If the pollen lands on the stigma of the same flower, it is called:
( A ) cross pollination
( B ) self pollination
( C ) right pollination
( D ) pollination
Ans – ( B )
45.Transfer of pollen grains from anther to the stigma of a flower is called
( A ) pollination
( B ) fertilisation
( C ) reproduction
( D ) fruit
Ans – ( A )
46.When you add yeast to dough, it rises because:
( A ) yeast cell reproduce by budding
( B ) budding yeast cells form chains
( C ) the rapidly reproducing yeast cells release carbon dioxide due to respiration
( D ) of the bulk of the new yeast cells.
Ans – ( A )
47.Winged seeds is a characteristic of seeds dispersed by
( A ) water
( B ) wind
( C ) animals
( D ) insect
Ans – ( B )
48.In onion and garlic, new plants are produced from:
( A ) bulbs
( B ) tubes
( C ) leaf buds
( D ) subaerial stems
Ans – ( A )
49.Fertilisation results in the formation of
( A ) embryo
( B ) egg cell
( C ) zygote
( D ) new plant
Ans – ( C )
50.Tiny cells protected by a thick wall and capable of producing new plants are called:
( A ) seeds
( B ) spores
( C ) buds
( D ) gametes
Ans – ( B )
51.Yeast reproduces by
( A ) budding
( B ) spore formation
( C ) vegetative propagation
( D ) sexual reproduction
Ans – ( A )
52.Rose and lemon are grown from:
( A ) tubers
( B ) bulbs
( C ) stemcuttings
( D ) leaf buds
Ans – ( C )
53.Which of the following contains the egg cell in plants?
( A ) Anther
( B ) Stigma
( C ) Pollen grain
( D ) Ovule
Ans – ( D )
54.The mode of reproduction in which an individual produces off spring without the help of another individual is called:
( A ) asexual reproduction
( B ) fertilisation
( C ) spore formation
( D ) vegetative reproduction
Ans – ( A )
55.Which of the following is the male reproductive organ in plants?
( A ) Pistil
( B ) Pollen grain
( C ) Stamen
( D ) Ovule
Ans – ( C )
56.Terms and mosses reproduce by:
( A ) fertilisation
( B ) vegetation
( C ) spore formation
( D ) pollination
Ans – ( C )
57.Asexual reproduction takes place through fragmentation in
( A ) potato
( B ) ferns
( C ) yeast
( D ) Spirogyra
Ans – ( D )
58.The reproduction part of a plant is the:
( A ) leaf
( B ) stem
( C ) root
( D ) flower
Ans – ( D )
59.Which of the following contains the male gamete in plants?
( A ) Filament
( B ) Stigma
( C ) Pollen grain
( D ) Ovule
Ans – ( C )
60.The process of fusion of the male and the female gametes is called:
( A ) fertilisation
( B ) pollination
( C ) reproduction
( D ) seed formation
Ans – ( A )