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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.

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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

Asexual reproduction in plants involves a single parent and produces offspring that are genetically identical. Vegetative propagation is the most common asexual method, where new plants grow from roots, stems, or leaves. NCERT Class 7 Science Chapter 8 highlights natural methods like budding in yeast and Bryophyllum leaf buds, and artificial methods like cutting, layering, and grafting used by farmers. Understanding which plant parts are involved and recognizing examples like potato tubers, ginger rhizomes, and rose stem cuttings are key exam topics. These MCQs test recall of terminology and the ability to match plants with their propagation method.
  • 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

Besides vegetative propagation, NCERT describes other asexual modes: fragmentation (breaking into fragments, each growing into a new organism, as in Spirogyra algae), budding (seen in yeast and Hydra), and spore formation (common in ferns and mosses). Class 7 students often confuse budding with vegetative propagation or mix up which organisms use which method. These MCQs clarify the differences and test the ability to identify organisms and their reproduction modes. Remembering that fragmentation occurs in simple multicellular organisms and spores are produced in sporangia helps answer these questions accurately.
  • 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

Sexual reproduction in plants involves the fusion of male and female gametes, producing genetically diverse offspring. NCERT Chapter 8 introduces the flower as the reproductive organ, with parts like sepals, petals, stamens (male), and pistil (female). The stamen consists of anther (produces pollen) and filament; the pistil comprises stigma, style, and ovary (contains ovules). Understanding these structures is critical because CBSE exams often ask students to label diagrams or identify functions. These MCQs test knowledge of flower parts, their roles, and the difference between male and female reproductive organs.
  • 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

Pollination is the transfer of pollen grains from the anther to the stigma. NCERT Chapter 8 distinguishes self-pollination (within the same flower or between flowers of the same plant) and cross-pollination (between flowers of different plants). Agents include insects (attracted by bright petals, nectar, scent), wind (light, dry pollen; feathery stigma in grasses), water (in aquatic plants), and animals. CBSE questions often ask students to identify the pollination type based on flower features or to match agents with plant examples. These MCQs cover definitions, examples, and the advantages of cross-pollination.
  • 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

After fertilization, the ovary develops into a fruit and ovules into seeds. Seed dispersal—scattering seeds away from the parent plant—prevents overcrowding and competition. NCERT Chapter 8 describes four main agents: wind (light seeds with wings or hair, e.g. maple, dandelion), water (fibrous, spongy seeds, e.g. coconut, lotus), animals (hooks stick to fur or are eaten and excreted, e.g. xanthium, mango), and explosion (pods burst open, e.g. pea, balsam). CBSE exams test the ability to match seeds with their dispersal agent based on structural features. These MCQs include recall and application questions.
  • 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

Multiple-choice questions in CBSE Class 7 Science papers typically carry 1 mark each and demand quick, accurate recall. Start by reading the question stem carefully—underline keywords like 'asexual', 'pollination', 'dispersal', or specific plant names. Eliminate obviously wrong options first; for instance, if the question asks for a wind-pollinated plant, rule out those with bright petals. In assertion-reason MCQs, evaluate both statements independently before deciding if one explains the other. Manage time by spending no more than 30 seconds per MCQ; if stuck, mark for review and move on. Always attempt every MCQ because there is no negative marking in CBSE exams. Revise NCERT diagrams of flower parts and seed structures—visual memory aids recall. Practice 15–20 MCQs daily in the weeks before the exam to build speed and confidence.
  • 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

Class 7 students often confuse vegetative propagation methods—mixing up which plant uses roots, stems, or leaves. For example, thinking sweet potato (root tuber) and potato (stem tuber) are the same. Another frequent error is believing all brightly coloured flowers are insect-pollinated without checking for nectar presence or considering wind-pollinated exceptions. In seed dispersal, students sometimes assign the wrong agent; they assume all light seeds are wind-dispersed, forgetting that some aquatic seeds are light yet float on water. Assertion-reason MCQs trip up learners who assume that if both statements are true, the Reason must explain the Assertion—always verify the logical link. Finally, rushing through the question stem leads to misreading 'asexual' as 'sexual' or 'self-pollination' as 'cross-pollination'. Slow, careful reading and regular practice with NCERT-based MCQs prevent these pitfalls.
  • 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

Consistent practice is the key to scoring full marks in the MCQ section of CBSE Class 7 Science exams. CBSETUTOR.ai offers a 24×7 AI tutor that generates unlimited chapter-wise MCQs for Reproduction in Plants, adapting difficulty based on your performance. Upload a photo of any NCERT diagram or question you find tricky—say, the flower structure or a seed dispersal example—and receive an instant step-by-step explanation in simple language. The platform tracks which question types you struggle with (e.g. assertion-reason, application-based) and suggests targeted practice sets. At a flat ₹999 per month for all subjects and classes 6–12, it's far more affordable than weekly tuition, and you get a 3-day free trial to explore the Chapter 8 MCQ bank. Parents in busy metro cities appreciate that their child can clarify doubts at 11 PM without waiting for the next tutor session. Regular mock quizzes on CBSETUTOR.ai build exam confidence and ensure you recognize every plant example, reproduction mode, and pollination agent the moment you see it in the paper.
  • 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?+
Typically, 2–3 MCQs from Chapter 8 appear in the term exam, each worth 1 mark. The CBSE question paper includes 10–12 MCQs in total across all chapters, so mastering Chapter 8 concepts ensures you secure those 2–3 marks confidently.
What is the difference between vegetative propagation and fragmentation?+
Vegetative propagation uses specialized plant parts—roots, stems, or leaves—to grow new plants, e.g. potato tubers, Bryophyllum leaf buds. Fragmentation occurs when an organism breaks into fragments, each regenerating into a whole organism, e.g. Spirogyra algae. Both are asexual, but fragmentation is simpler and seen in lower organisms.
How do I remember which seeds are dispersed by which agent?+
Link seed structure to the agent: winged or hairy seeds (maple, dandelion) fly with wind; fibrous, floating seeds (coconut, lotus) travel by water; hooked or fleshy seeds (xanthium, mango) hitch rides on animals; pods that burst (pea, balsam) use explosion. Make a table and revise it daily.
Are assertion-reason MCQs difficult in Class 7 Science Chapter 8?+
Assertion-reason MCQs test deeper understanding. Read both statements separately: decide if each is true, then check if Reason logically explains Assertion. For example, 'Spore formation is fast (A); spores have thick walls (R)'—both true, but thick walls ensure survival, not speed, so R does not explain A.
Can I score full marks in MCQs by only reading NCERT?+
Yes, NCERT is sufficient. Focus on definitions, examples (potato, Bryophyllum, yeast, Spirogyra), flower diagrams, and seed structures. Practice labelling diagrams and matching plants to reproduction modes. Supplement with 15–20 MCQs daily from CBSETUTOR.ai or sample papers to build speed and confidence.
What is the role of the pistil in sexual reproduction?+
The pistil is the female reproductive part. Its stigma receives pollen, the style connects stigma to ovary, and the ovary contains ovules. After pollination and fertilization, ovules develop into seeds and the ovary becomes the fruit. Understanding this flow is key to answering MCQs on flower function.
How is cross-pollination better than self-pollination?+
Cross-pollination brings pollen from a different plant, mixing genetic material and producing stronger, more varied offspring. Self-pollination is simpler but offers no genetic diversity. CBSE MCQs often ask you to identify which type occurs in a given flower based on structure, e.g. unisexual flowers need cross-pollination.
Why do CBSE exams include diagrams in Reproduction in Plants MCQs?+
Diagrams test visual recall and labelling skills. You may be asked to identify the anther, stigma, ovary, or seed dispersal structures. Practise drawing and labelling the NCERT flower diagram and seed examples at least 5 times before the exam to ensure you recognise parts instantly.
How does CBSETUTOR.ai help with Chapter 8 MCQ practice?+
CBSETUTOR.ai generates unlimited NCERT-aligned MCQs for Chapter 8, covering asexual, sexual reproduction, pollination, and dispersal. Upload a photo of any tricky diagram or question for instant explanations. The AI tracks your weak topics and suggests focused practice. Flat ₹999/month, 3-day free trial, 24×7 availability—ideal for self-paced learning.
What should I do if I am confused between two options in an MCQ?+
Eliminate the two clearly wrong options first. Compare the remaining two against NCERT terminology and examples. If still unsure, pick the option that uses exact NCERT language. In CBSE exams, there is no negative marking, so always attempt every MCQ even if you have to make an educated guess.

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