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CBSE Class 7 Science Chapter 8 Reproduction in Plants Worksheet with Answers

Reproduction in Plants is a foundational chapter in CBSE Class 7 Science that explores how plants continue their species through asexual and sexual methods. This printable worksheet provides structured practice across all topics in NCERT Chapter 8, from vegetative propagation to seed dispersal. Students preparing for unit tests, term exams or simply reinforcing classroom learning will find questions mapped to the latest CBSE syllabus. Print this worksheet and attempt it under timed conditions for best results.

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Key takeaways

  • ✓Asexual reproduction in plants occurs through vegetative propagation, budding, fragmentation and spore formation without formation of seeds
  • ✓Sexual reproduction involves flower parts — stamen (male) and pistil (female) — where pollination leads to fertilisation and seed formation
  • ✓Pollination can be self-pollination (within same flower) or cross-pollination (between different flowers) aided by wind, water, insects or animals
  • ✓Seed dispersal mechanisms include wind (winged or hairy seeds), water (fibrous or spongy seeds), animals (hooks or edible fruits) and explosion
  • ✓Vegetative propagation occurs through specialised structures like tubers in potato, bulbs in onion, runners in strawberry and stem cuttings in rose
  • ✓The flower's reproductive parts include ovary containing ovules which develop into fruit and seeds after fertilisation
  • ✓Understanding reproduction helps farmers use grafting, layering and tissue culture techniques for crop improvement and faster propagation

Quick Chapter Recap: Reproduction in Plants

Before attempting the worksheet, review these core concepts from NCERT Class 7 Science Chapter 8. Reproduction is the biological process by which organisms produce new individuals of their kind. Plants reproduce through two main modes. Asexual reproduction occurs without the involvement of seeds or fusion of gametes — methods include vegetative propagation using roots (dahlia, sweet potato), stems (potato, ginger, strawberry), leaves (Bryophyllum), budding in yeast, fragmentation in algae like Spirogyra, and spore formation in ferns and mosses. Sexual reproduction involves flowers, where the stamen produces pollen (male gametes) and the pistil contains ovules (female gametes). Pollination transfers pollen to the stigma, followed by fertilisation in the ovary. The ovary develops into fruit while ovules become seeds. Seed dispersal occurs through wind (maple, drumstick), water (coconut, lotus), animals (xanthium, burdock with hooks; fruits eaten by birds), and explosive mechanisms (balsam, pea). Unisexual flowers have either stamens or pistils (papaya, watermelon), while bisexual flowers have both (hibiscus, mustard). Understanding these mechanisms helps explain agricultural practices like grafting and layering.
  • Asexual reproduction: no seed formation, offspring identical to parent — vegetative propagation, budding, fragmentation, spore formation
  • Sexual reproduction: involves flower parts, pollination, fertilisation, seed and fruit formation
  • Flower structure: sepals, petals, stamen (anther + filament), pistil (stigma, style, ovary)
  • Pollination types: self-pollination (same flower) vs cross-pollination (different flowers); agents include insects, wind, water, birds
  • Seed dispersal agents: wind (light, winged seeds), water (fibrous covering), animals (hooks, edible fruits), explosion (pod bursts)

Section A: Multiple Choice Questions (MCQs)

This section contains 8 multiple-choice questions testing your understanding of key concepts in Reproduction in Plants. Each question has four options with only one correct answer. These MCQs cover asexual and sexual reproduction methods, flower structure, pollination agents, and seed dispersal mechanisms as per the NCERT Class 7 Science syllabus. Read each question carefully and select the most appropriate answer. Mark your answers on a separate sheet or circle them directly. Each question carries 1 mark. Pay special attention to terminology used in the NCERT textbook such as vegetative propagation, fragmentation, and cross-pollination.
  • Q1. Which part of the flower develops into a fruit after fertilisation? (a) Ovule (b) Ovary (c) Stamen (d) Stigma
  • Q2. Vegetative propagation through leaves occurs in: (a) Potato (b) Ginger (c) Bryophyllum (d) Onion
  • Q3. The process of transfer of pollen grains from anther to stigma is called: (a) Fertilisation (b) Reproduction (c) Pollination (d) Germination
  • Q4. Which of these is NOT a method of asexual reproduction in plants? (a) Budding (b) Fragmentation (c) Pollination (d) Spore formation
  • Q5. Seeds of maple and drumstick are dispersed by: (a) Water (b) Wind (c) Animals (d) Explosion
  • Q6. The male reproductive part of a flower is: (a) Pistil (b) Sepal (c) Stamen (d) Petal
  • Q7. Which plant reproduces through fragmentation? (a) Rose (b) Spirogyra (c) Potato (d) Bread mould
  • Q8. In a bisexual flower, you will find: (a) Only stamens (b) Only pistil (c) Both stamens and pistil (d) Neither stamens nor pistil

Section B: Fill in the Blanks

Complete the following sentences by filling in the blanks with appropriate words from Chapter 8 of your NCERT Class 7 Science textbook. This section tests your recall of specific terms and concepts related to reproduction in plants. Write your answers clearly. Each blank carries 1 mark, for a total of 7 marks in this section. Focus on precise scientific terminology such as the parts of a flower, types of reproduction, and agents of pollination and seed dispersal. Some sentences may have more than one blank. Use the word bank sparingly and try to recall from memory first.
  • Q9. The ovary contains __________ which develop into seeds after fertilisation.
  • Q10. Reproduction without fusion of gametes is called __________ reproduction.
  • Q11. The process by which seeds are scattered away from the parent plant is called __________.
  • Q12. In __________ pollination, pollen grains are transferred from the anther to the stigma of the same flower.
  • Q13. __________ is a stem that grows horizontally along the ground and produces new plants at nodes.
  • Q14. Yeast reproduces asexually by a process called __________.
  • Q15. The __________ and __________ together form the stamen of a flower.

Section C: True or False Statements

Determine whether each statement is True or False based on your knowledge of NCERT Class 7 Science Chapter 8. Write 'T' for true and 'F' for false next to each statement. This section assesses your understanding of factual information and common misconceptions about plant reproduction. Each correct answer carries 1 mark. After marking your answers, be prepared to correct the false statements during revision. Pay attention to details such as which plant parts are involved in specific reproduction methods and the characteristics of different pollination and dispersal mechanisms.
  • Q16. All flowering plants reproduce only through seeds.
  • Q17. Pollination always occurs before fertilisation in sexual reproduction.
  • Q18. Potato and ginger both reproduce vegetatively through underground stems.
  • Q19. Coconut seeds are dispersed by wind because they are light.
  • Q20. A unisexual flower contains either stamens or pistil, but not both.
  • Q21. Fragmentation is a method of asexual reproduction seen in Spirogyra.
  • Q22. The stigma is the part of the stamen that receives pollen grains.
  • Q23. Grafting is an artificial method of vegetative propagation used by gardeners.

Section D: Short Answer Questions (2-3 marks each)

Answer the following questions in 2-3 sentences each. These short-answer questions require you to explain concepts, differentiate between terms, or describe processes covered in the NCERT Class 7 Science Chapter 8. Each question carries 2-3 marks as indicated. Write clear, concise answers using correct scientific terminology. Support your answers with examples where asked. This section tests both your conceptual understanding and your ability to articulate ideas effectively, skills essential for CBSE board exams in higher classes.
  • Q24. Differentiate between self-pollination and cross-pollination. Give one example of each. (3 marks)
  • Q25. What is vegetative propagation? Name two plants that reproduce through stems. (2 marks)
  • Q26. Describe the process of seed dispersal by wind with two examples. (2 marks)
  • Q27. Draw a labelled diagram of a typical flower showing sepals, petals, stamens and pistil. (3 marks)
  • Q28. Explain budding in yeast with a simple diagram. (2 marks)
  • Q29. Why is seed dispersal important for plants? Give two reasons. (2 marks)
  • Q30. What are the advantages of vegetative propagation over reproduction through seeds? (3 marks)

Section E: Long Answer and HOTS Questions (5 marks each)

These questions require detailed answers demonstrating deep understanding and application of concepts from CBSE Class 7 Science Chapter 8 Reproduction in Plants. Each answer should be 5-7 sentences long and carry 5 marks. Higher Order Thinking Skills (HOTS) questions may ask you to analyse situations, compare methods, or apply knowledge to new contexts. Structure your answers with clear points, use diagrams where helpful, and provide relevant examples from the NCERT textbook or real life. These questions prepare you for the application-based questions increasingly common in CBSE examinations.
  • Q31. Describe sexual reproduction in flowering plants. Explain the role of pollination and fertilisation in seed formation. Include the fate of various flower parts after fertilisation. (5 marks)
  • Q32. Explain various methods of asexual reproduction in plants with one example of each method. Why is the offspring from asexual reproduction genetically identical to the parent? (5 marks)
  • Q33. [HOTS] A farmer has a mango tree that produces very sweet fruits. He wants to grow more trees with the same quality of fruits. Should he plant the seeds from this tree or use vegetative propagation? Justify your answer with scientific reasoning. (5 marks)

Section F: Case Study Question

Read the case study below carefully and answer the questions that follow. Case-based questions are now a standard part of CBSE examinations and test your ability to apply classroom knowledge to real-world scenarios. This question carries 4 marks total (1 mark per sub-question). Analyse the information provided, connect it to concepts from NCERT Class 7 Science Chapter 8, and provide reasoned answers. Such questions develop scientific temperament and critical thinking skills valued in the CBSE curriculum.

Complete Answer Key with Explanations

Below are the correct answers to all questions in this CBSE Class 7 Science Chapter 8 worksheet. Each answer includes a brief explanation to help you understand the concept better. Use this answer key for self-assessment after attempting all questions. If you got any question wrong, revisit that topic in your NCERT Class 7 Science textbook and class notes. Understanding why an answer is correct is more important than simply marking right or wrong. For diagram-based questions, compare your drawings with those in the NCERT textbook. Regular practice with such worksheets builds confidence and improves exam performance significantly.
  • A1. (b) Ovary — After fertilisation, the ovary of the flower develops into the fruit, while the ovules inside become seeds.
  • A2. (c) Bryophyllum — This plant reproduces vegetatively through leaves; buds develop on leaf margins that fall and grow into new plants.
  • A3. (c) Pollination — Pollination is the transfer of pollen from anther to stigma; fertilisation occurs later when male and female gametes fuse.
  • A4. (c) Pollination — Pollination is part of sexual reproduction, not asexual. Budding, fragmentation and spore formation are asexual methods.
  • A5. (b) Wind — Both maple and drumstick have winged seeds that are light and carried by wind to distant places.
  • A6. (c) Stamen — The stamen consists of anther and filament; it produces pollen grains containing male gametes.
  • A7. (b) Spirogyra — This is a green algae that reproduces asexually by fragmentation, where filaments break into pieces that grow into new organisms.
  • A8. (c) Both stamens and pistil — Bisexual flowers contain both male (stamen) and female (pistil) reproductive parts; examples include mustard and hibiscus.
  • A9. ovules — Ovules are present inside the ovary and develop into seeds after fertilisation occurs.
  • A10. asexual — Asexual reproduction does not involve gamete fusion; methods include vegetative propagation, budding, fragmentation, spore formation.
  • A11. seed dispersal — Dispersal prevents overcrowding and competition, helping seeds reach new habitats for germination.
  • A12. self — In self-pollination, pollen from the same flower or another flower on the same plant reaches the stigma; seen in pea and wheat.
  • A13. Runner — A runner is a horizontal stem that grows along the ground; new plants develop at nodes, e.g., strawberry and grass.
  • A14. budding — In budding, a small bud develops on the parent yeast cell, grows, and eventually detaches to form a new individual.
  • A15. anther, filament — The anther produces pollen grains; the filament is the stalk that supports the anther; together they form the stamen.
  • A16. False — Many flowering plants also reproduce asexually through vegetative propagation (potato, rose, Bryophyllum).
  • A17. True — Pollination (transfer of pollen to stigma) must occur first; fertilisation (fusion of gametes) happens afterwards in the ovary.
  • A18. True — Potato reproduces through tubers and ginger through rhizomes; both are modified underground stems with buds.
  • A19. False — Coconut is dispersed by water, not wind; it has a fibrous outer covering that helps it float on water.
  • A20. True — Unisexual flowers have either male parts (stamens) or female parts (pistil), but not both; e.g., papaya, watermelon.
  • A21. True — Spirogyra, a filamentous green algae, breaks into fragments under favourable conditions; each fragment grows into a new filament.
  • A22. False — The stigma is part of the pistil (female part), not the stamen; it receives pollen grains during pollination.
  • A23. True — Grafting is an artificial vegetative propagation method where a cutting from one plant is joined to the rooted stem of another.

Long Answer Key (Section E and F)

Detailed answers for long-answer, HOTS and case-study questions are provided below. These model answers demonstrate the level of detail and structure expected in CBSE Class 7 Science examinations. Use these as guidelines for framing your own answers. Notice how each answer is logically organised with clear points, includes relevant examples, and uses proper scientific terminology from the NCERT textbook. When practising such questions, time yourself — aim for 6-7 minutes per 5-mark question.

How to Use This Worksheet Effectively for CBSE Exam Preparation

Maximise your learning from this CBSE Class 7 Science Chapter 8 worksheet by following a structured approach. First, ensure you have completed reading the chapter from your NCERT textbook and reviewed your class notes. Set a timer for 60-75 minutes and attempt the worksheet in one sitting under exam-like conditions — no textbook, no notes. Write your answers neatly on separate sheets. After completing, check your answers against the answer key provided. For every incorrect answer, go back to the relevant section in your NCERT Class 7 Science book and re-read the concept. Make a note of topics where you made mistakes and revise them again after two days. Attempt the worksheet a second time after a week to check retention. Pay special attention to diagram-based questions; practice drawing and labelling flower structure multiple times. For HOTS questions, discuss your approach with classmates or teachers to understand different perspectives. Regular practice with such worksheets not only builds strong conceptual foundations but also improves time management and answer-writing skills crucial for scoring well in CBSE board exams in higher classes. Parents can use this worksheet to assess their child's understanding and identify weak areas that need focused attention.
  • Attempt the worksheet without referring to textbooks or notes; simulate exam conditions for best practice
  • Allocate time wisely: 1 mark questions (1 min), 2-3 mark questions (2-4 min), 5 mark questions (6-7 min)
  • Check your answers against the detailed answer key; understand the explanation for each correct answer
  • Identify topics where you made errors and revise those sections from NCERT Class 7 Science textbook thoroughly
  • Practice drawing and labelling diagrams (flower structure, budding in yeast) multiple times until perfect
  • Re-attempt incorrect questions after 2-3 days to check if you have understood the concepts
  • Discuss HOTS and case-study questions with peers or teachers to gain different problem-solving approaches

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Frequently asked questions

What is the difference between asexual and sexual reproduction in plants?+
Asexual reproduction does not involve flowers, seeds or fusion of gametes; new plants grow from vegetative parts like roots, stems or leaves (e.g., potato, Bryophyllum). Sexual reproduction involves flowers, pollination, fertilisation and seed formation, producing genetically varied offspring.
Why do plants produced by vegetative propagation fruit earlier than seed-grown plants?+
Vegetatively propagated plants are essentially mature cuttings or parts of an adult plant, so they skip the juvenile growth phase. They retain the maturity of the parent and can flower and fruit within 2-3 years, while seed-grown plants must go through the entire growth cycle, taking 5-7 years for fruit trees.
What are the main topics covered in CBSE Class 7 Science Chapter 8?+
Chapter 8 Reproduction in Plants covers asexual reproduction (vegetative propagation through roots, stems, leaves; budding; fragmentation; spore formation), sexual reproduction (flower structure, pollination types, fertilisation), seed formation, and seed dispersal mechanisms (wind, water, animals, explosion).
How should students prepare for diagram-based questions in this chapter?+
Practice drawing the structure of a flower with all parts labelled (sepals, petals, stamens with anther and filament, pistil with stigma, style and ovary) multiple times. Refer to NCERT diagrams. Also practice simple diagrams showing budding in yeast and different types of vegetative propagation. Neatness and accurate labelling fetch full marks.
What is the best way to remember different methods of asexual reproduction?+
Create a chart: Vegetative propagation (roots: dahlia; stems: potato, ginger, strawberry; leaves: Bryophyllum), Budding (yeast), Fragmentation (Spirogyra), Spore formation (ferns, mosses). Associate each method with one clear example and visualise it. Revise this chart daily for a week before exams.
How much time should Class 7 students spend on this worksheet?+
This worksheet is designed for 60-75 minutes of focused work under exam conditions. Students should allocate roughly 15 minutes for MCQs and objective sections, 20 minutes for short answers, 20 minutes for long answers and case study, leaving 5-10 minutes for review. Regular practice improves speed.
Are HOTS questions important for CBSE Class 7 Science exams?+
Yes, CBSE increasingly includes application-based and Higher Order Thinking Skills questions even in Class 7 to develop analytical ability. Questions like choosing between seeds and vegetative propagation for a specific purpose test understanding beyond rote learning. Practicing such questions builds critical thinking essential for higher classes.
What are common mistakes students make in Reproduction in Plants chapter?+
Common errors include confusing ovary with ovule, mixing up stamen and pistil parts, incorrectly stating that all plants reproduce through seeds, not understanding the difference between pollination and fertilisation, and forgetting that vegetative propagation is a form of asexual reproduction. Careful reading of NCERT text prevents these mistakes.
How can parents help their Class 7 child with this Science chapter at home?+
Parents can quiz children using the MCQs and fill-in-the-blanks from this worksheet, take them to a garden to observe real flowers and identify parts, encourage them to plant potato eyes or Bryophyllum leaves to see vegetative propagation in action, and discuss real-life examples like how farmers use grafting in fruit orchards.
Is this worksheet aligned with the latest CBSE Class 7 Science syllabus?+
Yes, this worksheet is completely aligned with the current NCERT Class 7 Science curriculum for Chapter 8 Reproduction in Plants. It covers all topics including asexual reproduction methods, flower structure, pollination, fertilisation and seed dispersal exactly as prescribed by CBSE. Question patterns match recent exam trends including MCQs, case studies and HOTS questions.

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