CBSE Class 7 Science Chapter 8 Reproduction in Plants — 20 MCQs with Answers
Reproduction in Plants is a foundational chapter in CBSE Class 7 Science, introducing students to how plants multiply through asexual and sexual methods. NCERT Chapter 8 covers vegetative propagation, budding, fragmentation, flower anatomy, pollination, and seed dispersal. Mastering these concepts through multiple-choice questions is essential because the CBSE exam pattern frequently tests terminology, plant examples, and the ability to differentiate between reproduction modes. This page presents 20 MCQs that mirror the style and difficulty of real CBSE papers, complete with answers and explanations.
Key takeaways
- ✓20 NCERT-aligned MCQs cover asexual reproduction, sexual reproduction, pollination, and seed dispersal for Class 7 Science Chapter 8.
- ✓Each question includes four options, the correct answer, and a brief explanation using NCERT terminology.
- ✓Mix of difficulty levels—factual recall, application-based, and HOTS/assertion-reason questions—mirrors CBSE exam patterns.
- ✓Vegetative propagation methods like stem cuttings, layering, grafting, and budding are tested with real plant examples.
- ✓Pollination types (self, cross, wind, insect) and seed dispersal agents (wind, water, animals, explosion) are emphasized.
- ✓Strategy section guides students on eliminating wrong options and managing time during CBSE exams.
- ✓Regular MCQ practice on CBSETUTOR.ai helps identify weak areas and build exam confidence for Chapter 8.
Understanding Asexual Reproduction — Vegetative Propagation MCQs
- Q1. Which of the following is an example of vegetative propagation through stem? (A) Potato (B) Dahlia (C) Carrot (D) Sweet potato. **Answer: (A) Potato.** Reason: Potato has underground stems called tubers with 'eyes' that sprout new plants.
- Q2. Bryophyllum reproduces vegetatively through: (A) Roots (B) Leaves (C) Stem (D) Flower. **Answer: (B) Leaves.** Reason: Buds develop on leaf margins and fall to form new plants.
- Q3. Which artificial method involves joining parts of two plants to grow as one? (A) Cutting (B) Layering (C) Grafting (D) Budding. **Answer: (C) Grafting.** Reason: In grafting, the stem of one plant is joined to the root of another for better yield.
- Q4. Yeast reproduces asexually by: (A) Fragmentation (B) Budding (C) Spore formation (D) Vegetative propagation. **Answer: (B) Budding.** Reason: A small outgrowth (bud) appears on the yeast cell and later detaches to form a new organism.
Fragmentation, Budding, and Spore Formation MCQs
- Q5. Spirogyra reproduces asexually by: (A) Budding (B) Fragmentation (C) Grafting (D) Layering. **Answer: (B) Fragmentation.** Reason: Spirogyra breaks into two or more fragments, each growing into a new filament.
- Q6. Which of the following organisms reproduces by spore formation? (A) Yeast (B) Potato (C) Fern (D) Rose. **Answer: (C) Fern.** Reason: Ferns produce spores in sporangia that grow into new plants under favourable conditions.
- Q7. In Hydra, the process of asexual reproduction is called: (A) Fragmentation (B) Budding (C) Binary fission (D) Regeneration. **Answer: (B) Budding.** Reason: A bud forms on the body, develops, and detaches to become a new Hydra.
- Q8. Assertion (A): Spore formation is a rapid method of asexual reproduction. Reason (R): Spores are covered by thick walls to survive unfavourable conditions. (A) Both A and R true; R explains A (B) Both true; R does NOT explain A (C) A true, R false (D) A false, R true. **Answer: (B) Both true; R does NOT explain A.** Reason: Spores allow rapid multiplication, but thick walls ensure survival, not speed.
Sexual Reproduction and Flower Structure MCQs
- Q9. The male reproductive part of a flower is called: (A) Pistil (B) Stamen (C) Sepal (D) Petal. **Answer: (B) Stamen.** Reason: Stamen consists of anther and filament; anther produces pollen grains.
- Q10. Which part of the flower contains ovules? (A) Anther (B) Stigma (C) Ovary (D) Filament. **Answer: (C) Ovary.** Reason: Ovary is the swollen base of the pistil where ovules develop into seeds after fertilization.
- Q11. Pollen grains are produced in the: (A) Ovary (B) Stigma (C) Anther (D) Style. **Answer: (C) Anther.** Reason: Anther is the pollen-producing part of the stamen.
- Q12. A flower that contains both stamen and pistil is called: (A) Unisexual (B) Bisexual (C) Incomplete (D) Asexual. **Answer: (B) Bisexual.** Reason: Bisexual flowers have both male and female reproductive organs in the same flower, e.g. mustard, rose.
Pollination — Self, Cross, Wind, and Insect Pollination MCQs
- Q13. Transfer of pollen from anther to stigma of the same flower is called: (A) Cross-pollination (B) Self-pollination (C) Fertilization (D) Germination. **Answer: (B) Self-pollination.** Reason: Pollen reaches stigma of the same flower or another flower on the same plant.
- Q14. Which of the following plants is pollinated by wind? (A) Rose (B) Grass (C) Hibiscus (D) Sunflower. **Answer: (B) Grass.** Reason: Grasses have light, dry pollen and feathery stigma to catch airborne pollen.
- Q15. Bright-coloured petals and nectar in flowers help in pollination by: (A) Wind (B) Water (C) Insects (D) Explosion. **Answer: (C) Insects.** Reason: Insects are attracted to colour and nectar, aiding in cross-pollination.
- Q16. Assertion (A): Cross-pollination leads to genetically diverse offspring. Reason (R): It involves pollen from a different plant. (A) Both A and R true; R explains A (B) Both true; R does NOT explain A (C) A true, R false (D) A false, R true. **Answer: (A) Both A and R true; R explains A.** Reason: Genetic variation arises because gametes come from two different parents.
Seed Dispersal Mechanisms MCQs
- Q17. Seeds of maple are dispersed by: (A) Water (B) Wind (C) Animals (D) Explosion. **Answer: (B) Wind.** Reason: Maple seeds have wing-like structures that help them glide through the air.
- Q18. Coconut is dispersed by: (A) Wind (B) Insects (C) Water (D) Birds. **Answer: (C) Water.** Reason: Coconut has a fibrous outer coat that allows it to float and travel by water currents.
- Q19. Seeds with hooks or spines are dispersed by: (A) Wind (B) Water (C) Animals (D) Explosion. **Answer: (C) Animals.** Reason: Hooks stick to animal fur, carrying seeds to new locations, e.g. xanthium.
- Q20. Assertion (A): Pea pods burst open to scatter seeds. Reason (R): This is an example of dispersal by explosion. (A) Both A and R true; R explains A (B) Both true; R does NOT explain A (C) A true, R false (D) A false, R true. **Answer: (A) Both A and R true; R explains A.** Reason: Pea pods dry and suddenly burst, throwing seeds away—explosive dispersal.
How to Attempt MCQs in the CBSE Class 7 Science Paper
- Read the question stem twice to catch nuances like 'example of' versus 'definition of'.
- Eliminate two options that are clearly incorrect; choose between the remaining two using NCERT terminology.
- In assertion-reason questions, check if both are true, then decide if Reason explains Assertion logically.
- Underline plant names and reproduction methods in the question; match them with NCERT examples.
- Revise diagrams: label parts of a flower (sepal, petal, stamen, pistil) and seed dispersal structures (wings, hooks, fibrous coat).
- Attempt all MCQs—no negative marking means guessing intelligently is better than leaving blanks.
- Allocate 10–12 minutes for 10 MCQs; save time for longer questions in the exam.
Common Mistakes Students Make in Reproduction in Plants MCQs
- Confusing potato (stem tuber) with sweet potato (root tuber) or dahlia (root tuber) leads to wrong answers on vegetative propagation.
- Assuming all colourful flowers are insect-pollinated; grasses can be colourful yet wind-pollinated.
- Mixing up fragmentation (Spirogyra) with budding (yeast)—both asexual but different mechanisms.
- Believing thick-walled spores cause fast reproduction; thick walls ensure survival, not speed.
- In seed dispersal, thinking coconut is wind-dispersed because it's large and travels far—actually water-dispersed.
- In assertion-reason MCQs, marking 'Both true; R explains A' without checking if Reason logically causes Assertion.
- Skipping diagram revision: CBSE often asks 'Which part is labelled X?' for flower diagrams.
Practising MCQs with CBSETUTOR.ai for Chapter 8 Mastery
- Access 100+ MCQs on Reproduction in Plants, sorted by subtopic: asexual, sexual, pollination, dispersal.
- AI tutor explains why each wrong option is incorrect, reinforcing NCERT concepts.
- Upload photos of NCERT diagrams (flower parts, seed structures) for instant labelling help and quiz generation.
- Track performance: identify weak areas like 'pollination agents' or 'seed dispersal' and get extra practice.
- Flat ₹999/month for Classes 6–12, all subjects—one price, unlimited doubt-solving and MCQ practice.
- 3-day free trial lets students try Chapter 8 MCQs before subscribing; no credit card needed.
- Practice anytime, anywhere—ideal for students in NCR, Tier-1, and Tier-2 cities without easy access to weekend coaching.
Frequently asked questions
How many MCQs on Reproduction in Plants appear in the CBSE Class 7 Science exam?+
What is the difference between vegetative propagation and fragmentation?+
How do I remember which seeds are dispersed by which agent?+
Are assertion-reason MCQs difficult in Class 7 Science Chapter 8?+
Can I score full marks in MCQs by only reading NCERT?+
What is the role of the pistil in sexual reproduction?+
How is cross-pollination better than self-pollination?+
Why do CBSE exams include diagrams in Reproduction in Plants MCQs?+
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