08. How do Organisms Reproduce

Description:

This downloadable PDF contains the complete NCERT solutions for Chapter 8 – How Do Organisms Reproduce? from Class 10 Science. Designed according to the latest CBSE 2024–25 syllabus, it includes step-by-step explanations, in-text and exercise question solutions, HOTS, and all relevant diagrams to strengthen your board exam preparation.

Whether it's binary fission, budding, vegetative propagation, sexual reproduction, or the human reproductive system—this file simplifies each concept with exam-ready answers and visual aids for better understanding and retention.

Why Choose This Book? 

✅ 100% coverage of NCERT textbook (in-text + end-of-chapter questions)

✅ Stepwise answers structured in CBSE board format

✅ Includes labelled diagrams (Amoeba, Yeast, Planaria, human reproductive systems)

✅ Based on latest 2024–25 CBSE guidelines

✅ Saves time on textbook revision

✅ BONUS: HOTS & MCQs for extra practice and quick recall

What You Will Learn?

✅ Reproduction, unlike other life processes, is not essential to maintain the life of an individual organism.

✅ Reproduction involves creation of a DNA copy and additional cellular apparatus by the cell involved in the process.

✅ Various organisms use different modes of reproduction depending on their body design. n In fission, many bacteria and protozoa simply divide into two or more daughter cells.

✅ Organisms such as hydra can regenerate if they are broken into pieces. They can also give out buds which mature into new individuals.

✅ Roots, stems and leaves of some plants develop into new plants through vegetative propagation. ✅ These are examples of asexual reproduction where new generations are created from a single individual. 

✅ Sexual reproduction involves two individuals for the creation of a new individual.

✅ DNA copying mechanisms creates variations which are useful for ensuring the survival of the species. Modes of sexual reproduction allow for greater variation to be generated. 

✅ Reproduction in flowering plants involves transfer of pollen grains from the anther to the stigma which is referred to as pollination. This is followed by fertilisation.

✅ Changes in the body at puberty, such as increase in breast size in girls and new facial hair growth in boys, are signs of sexual maturation. 

✅ The male reproductive system in human beings consists of testes which produce sperms, vas deferens, seminal vesicles, prostate gland, urethra and penis.

✅ The female reproductive system in human beings consists of ovaries, fallopian tubes, uterus and vagina.

✅ Sexual reproduction in human beings involves the introduction of sperm in the vagina of the female. Fertilisation occurs in the fallopian tube. 

✅ Contraception to avoid pregnancy can be achieved by the use of condoms, oral pills, copper-T and other methods. 

What’s Inside the Book? 

Total Pages: Approx. 12–15

Format: Printable PDF (instant download)

Includes:

✅ All NCERT back exercise questions

✅ In-text questions with model answers

✅ HOTS & CBSE-style practice questions

✅ Key labelled diagrams (Binary fission, Yeast, Male/Female reproductive organs)

Chapter Coverage 

This PDF covers all key topics from Chapter 8 – How Do Organisms Reproduce?

Asexual reproduction:

1. Binary fission

2. Budding

3. Fragmentation

4. Spore formation

5. Sexual reproduction in flowering plants and humans

6. Structure and function of the male and female reproductive system

7. Fertilization, zygote formation, and embryo development

8. Menstrual cycle and reproductive health

9. Vegetative propagation (cutting, layering, grafting)

10. Contraceptive methods and their significance

11. Differences: sexual vs asexual reproduction

12. Important definitions and labelled diagrams

Who Can Benefit from This Book? 

✅ Class 10 CBSE students preparing for boards

✅ Parents helping their children study more effectively

✅ Teachers & tutors creating assignments and homework plans

✅ Students needing visual reinforcement through diagrams

✅ Learners looking to sharpen answer-writing skills

How to Use This Book Effectively?

✅ Read each NCERT question, attempt it, then compare with the model answer

✅ Practice drawing diagrams included in the solutions

✅ Study 3–5 questions per day to avoid last-minute rush

✅ Use the PDF for revision a week before your science exam

✅ Highlight important answers and definitions for fast recall

Frequently Asked Questions (FAQs)