We have 35 MCQs for the science(biology) Chapter 11Reproduction: How Life Continues from the NCERT book. In addition, we have 10 true & false, and 10 fill in the blanks questions. Here are top main points from the chapter –
- Reproduction ensures continuity of life on Earth.
- Asexual reproduction involves only one parent.
- Vegetative propagation forms genetically identical plants.
- Cutting, grafting, layering aid plant propagation.
- Tissue culture produces healthy disease-free plantlets.
- Yeast and hydra reproduce through budding.
- Fungi reproduce by producing numerous spores.
- Mitosis produces genetically identical offspring called clones.
- Sexual reproduction involves fusion of two gametes.
- Meiosis reduces chromosome number by half.
- Humans have 46 chromosomes, gametes have 23.
- Flowers contain sepals, petals, stamens and pistil.
- Pollination transfers pollen from anther to stigma.
- Fertilisation forms zygote, embryo, seeds and fruits.
- Humans reproduce through internal fertilisation.
35 MCQ Questions for Class 9 Science: Chapter 11 Reproduction: How Life Continues
Question 1. What is reproduction?
a) Growth process
b) Food making
c) Producing offspring
d) Respiration
Answer:
c) Producing offspring — Continuity of species.
Question 2. Asexual reproduction requires:
a) Two parents
b) One parent
c) Many parents
d) Gametes
Answer:
b) One parent — No gamete fusion.
Question 3. Potato reproduces asexually through:
a) Seeds
b) Flowers
c) Underground stem
d) Leaves
Answer:
c) Underground stem — Vegetative propagation.
Question 4. Bryophyllum produces new plants from:
a) Roots
b) Leaves
c) Flowers
d) Fruits
Answer:
b) Leaves — Plantlets develop on margins.
Question 5. Sugarcane is commonly propagated by:
a) Spores
b) Seeds
c) Stem cuttings
d) Budding
Answer:
c) Stem cuttings — Widely used method.
Question 6. Which is NOT vegetative propagation?
a) Cutting
b) Grafting
c) Layering
d) Pollination
Answer:
d) Pollination — Sexual reproduction process.
Question 7. Tissue culture helps produce:
a) Diseased plants
b) Healthy plantlets
c) Weeds
d) Spores
Answer:
b) Healthy plantlets — Mass propagation.
Question 8. Yeast reproduces by:
a) Fragmentation
b) Budding
c) Fission
d) Pollination
Answer:
b) Budding — Small outgrowth develops.
Question 9. Hydra reproduces asexually through:
a) Spores
b) Budding
c) Seeds
d) Grafting
Answer:
b) Budding — Bud detaches later.
Question 10. Bread mould reproduces mainly by:
a) Seeds
b) Spores
c) Eggs
d) Buds
Answer:
b) Spores — Airborne reproductive units.
Question 11. Mitosis produces:
a) Different cells
b) Haploid cells
c) Identical cells
d) Gametes
Answer:
c) Identical cells — Same chromosome number.
Question 12. Genetically identical offspring are called:
a) Hybrids
b) Variants
c) Clones
d) Embryos
Answer:
c) Clones — Produced asexually.
Question 13. Sexual reproduction involves:
a) One parent
b) Two parents
c) No gametes
d) Only mitosis
Answer:
b) Two parents — Gamete fusion occurs.
Question 14. Meiosis forms:
a) Roots
b) Leaves
c) Gametes
d) Buds
Answer:
c) Gametes — Chromosomes become half.
Question 15. Human body cells contain:
a) 23 chromosomes
b) 46 chromosomes
c) 92 chromosomes
d) 12 chromosomes
Answer:
b) 46 chromosomes — 23 pairs.
Question 16. Human gametes contain:
a) 46 chromosomes
b) 92 chromosomes
c) 23 chromosomes
d) 12 chromosomes
Answer:
c) 23 chromosomes — Haploid condition.
Question 17. Male gamete in animals is:
a) Ovule
b) Egg
c) Sperm
d) Embryo
Answer:
c) Sperm — Fertilizes egg.
Question 18. Female gamete in animals is:
a) Ovule
b) Egg
c) Pollen
d) Zygote
Answer:
b) Egg — Female reproductive cell.
Question 19. Male gametes in flowering plants occur in:
a) Ovary
b) Ovule
c) Pollen grains
d) Fruit
Answer:
c) Pollen grains — Produced in anther.
Question 20. Female gamete in flowering plants is inside:
a) Petal
b) Ovule
c) Sepal
d) Stigma
Answer:
b) Ovule — Located in ovary.
Question 21. Which protects flower buds?
a) Petals
b) Stamens
c) Sepals
d) Ovules
Answer:
c) Sepals — Outer protective whorl.
Question 22. The male part of a flower is:
a) Pistil
b) Ovary
c) Stamen
d) Stigma
Answer:
c) Stamen — Produces pollen grains.
Question 23. The female part of a flower is:
a) Petal
b) Pistil
c) Anther
d) Filament
Answer:
b) Pistil — Contains ovary.
Question 24. Pollination means transfer of:
a) Ovules
b) Seeds
c) Pollen grains
d) Embryos
Answer:
c) Pollen grains — To stigma.
Question 25. Self-pollination occurs within:
a) Different species
b) Different plants
c) Same plant
d) Different flowers only
Answer:
c) Same plant — Own pollen transfer.
Question 26. Cross-pollination occurs between:
a) Same flower only
b) Different plants
c) Same ovule
d) Same seed
Answer:
b) Different plants — Same species.
Question 27. Wind-pollinated flowers generally have:
a) Sticky pollen
b) Heavy pollen
c) Light pollen
d) Large petals
Answer:
c) Light pollen — Easily carried.
Question 28. Fusion of gametes is called:
a) Pollination
b) Germination
c) Fertilisation
d) Budding
Answer:
c) Fertilisation — Forms zygote.
Question 29. Fertilised egg is known as:
a) Ovule
b) Embryo
c) Zygote
d) Seed
Answer:
c) Zygote — First diploid cell.
Question 30. Ovary develops into:
a) Root
b) Seed
c) Fruit
d) Stem
Answer:
c) Fruit — After fertilisation.
Question 31. Ovules develop into:
a) Leaves
b) Seeds
c) Flowers
d) Roots
Answer:
b) Seeds — Contain embryo.
Question 32. Fertilisation in frogs is usually:
a) Internal
b) External
c) Artificial
d) Asexual
Answer:
b) External — Occurs in water.
Question 33. Fertilisation in mammals is:
a) External
b) Budding
c) Internal
d) Fragmentation
Answer:
c) Internal — Embryo protected.
Question 34. Sperm are produced in:
a) Ovaries
b) Uterus
c) Testes
d) Cervix
Answer:
c) Testes — Located in scrotum.
Question 35. Human embryo develops in the:
a) Ovary
b) Urethra
c) Uterus
d) Oviduct
Answer:
c) Uterus — Foetal development site.
10 True and False Questions for Chapter 11 Reproduction: How Life Continues
Question 1. Asexual reproduction requires only one parent. (True/False)
Answer:
True
Question 2. Yeast reproduces by spore formation only. (True/False)
Answer:
False
Question 3. Bryophyllum can reproduce through its leaves. (True/False)
Answer:
True
Question 4. Mitosis produces genetically identical cells. (True/False)
Answer:
True
Question 5. Meiosis doubles the chromosome number. (True/False)
Answer:
False
Question 6. Pollen grains contain male gametes in flowering plants. (True/False)
Answer:
True
Question 7. Pollination and fertilisation are the same process. (True/False)
Answer:
False
Question 8. After fertilisation, ovules develop into seeds. (True/False)
Answer:
True
Question 9. Fertilisation in frogs usually occurs internally. (True/False)
Answer:
False
Question 10. Human reproduction involves internal fertilisation. (True/False)
Answer:
True
10 Fill in the Blanks Questions for Chapter 11 Reproduction: How Life Continues
Question 1. Reproduction ensures the __________ of a species.
Answer:
Continuity
Question 2. In budding, a new individual develops from a __________.
Answer:
Bud
Question 3. Tissue culture is used for rapid __________ of plants.
Answer:
Propagation
Question 4. Genetically identical offspring are called __________.
Answer:
Clones
Question 5. Meiosis reduces the chromosome number by __________.
Answer:
Half
Question 6. The male reproductive part of a flower is the __________.
Answer:
Stamen
Question 7. The transfer of pollen to stigma is called __________.
Answer:
Pollination
Question 8. Fusion of male and female gametes is called __________.
Answer:
Fertilisation
Question 9. The fertilised egg cell is known as a __________.
Answer:
Zygote
Question 10. In flowering plants, the ovary develops into a __________.
Answer:
Fruit
Question on Match the Columns
Unmatched Columns – Questions
| Column A | Column B |
|---|---|
| (i) Budding | (a) Transfer of pollen to stigma |
| (ii) Tissue Culture | (b) Fusion of male and female gametes |
| (iii) Pollination | (c) Produces genetically identical offspring |
| (iv) Fertilisation | (d) Mass production of healthy plantlets |
| (v) Mitosis | (e) New organism develops from a bud |
| (vi) Zygote | (f) First cell after fertilisation |
Matched Columns – Answer
| Column A | Column B |
|---|---|
| (i) Budding | (e) New organism develops from a bud |
| (ii) Tissue Culture | (d) Mass production of healthy plantlets |
| (iii) Pollination | (a) Transfer of pollen to stigma |
| (iv) Fertilisation | (b) Fusion of male and female gametes |
| (v) Mitosis | (c) Produces genetically identical offspring |
| (vi) Zygote | (f) First cell after fertilisation |
