Class 9 Science Chapter 11: Reproduction: How Life Continues — practice questions with answers
Free practice for Class 9 Science, Chapter 11: Reproduction: How Life Continues. Try the solved questions below, then take a free test with instant marking and explanations.
54 questions19 easy, 24 medium, 11 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. New potato plants grow from the ‘eyes’ of a potato tuber without seeds. What is this called?
- Vegetative propagation
- Pollination
- Fertilisation
- Spore formation
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Answer: A. Vegetative propagation
Why: New plants arise from vegetative parts. [p.209]
Why: New plants arise from vegetative parts. [p.209]
Q2. Bryophyllum leaves sprout tiny plantlets along their edges. Which type of reproduction is this?
- Asexual — vegetative propagation from leaves
- Sexual reproduction
- Budding in animals
- Fragmentation of fungi
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Answer: A. Asexual — vegetative propagation from leaves
Why: Only one parent is involved. [p.209]
Why: Only one parent is involved. [p.209]
Q3. Small round outgrowths appear on yeast cells in sugar solution. What process is this?
- Budding
- Spore formation
- Fertilisation
- Pollination
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Answer: A. Budding
Why: Hydra also reproduces by budding. [p.211]
Why: Hydra also reproduces by budding. [p.211]
Q4. Human body cells have 23 pairs of chromosomes. How many chromosomes are in each body cell?
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Answer: 46 (± 0)
Why: 23 × 2 = 46. [p.213]
Why: 23 × 2 = 46. [p.213]
Q5. How many chromosomes are present in a human sperm or egg?
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Answer: 23 (± 0)
Why: Meiosis halves the number. [p.213, p.220]
Why: Meiosis halves the number. [p.213, p.220]
Q6. How do brightly coloured, scented petals help a flower reproduce?
- They attract pollinators like bees and butterflies
- They make food
- They store water
- They protect the roots
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Answer: A. They attract pollinators like bees and butterflies
Why: Pollinators carry pollen. [p.214–216]
Why: Pollinators carry pollen. [p.214–216]
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Frequently asked questions
How many practice questions are there for Class 9 Science Chapter 11: Reproduction: How Life Continues?
54 questions (19 easy, 24 medium, 11 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 9 Science syllabus, used by CBSE and many state boards.