SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions | Assam Eduverse

Q: How many MCQs are asked in HSLC Science exam?

Students must answer 45 MCQs as per the latest HSLC exam pattern.

Q: Are these questions based on SEBA syllabus?

Yes, all questions follow the latest SEBA (ASSEB) syllabus for 2026–27.

Q: Do these include previous year questions?

Yes, previous year questions are included to match HSLC exam trends.

Q: Can practising these improve exam performance?

Yes, regular revision improves conceptual clarity and MCQ accuracy.

SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions are prepared to strengthen understanding of reproduction in plants and animals for the HSLC examination. These SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions include theory-based questions, diagram-based questions, previous year questions (PYQs), and important MCQs.

The SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions strictly follow the latest SEBA (ASSEB) syllabus for 2026–27. Since students must answer 45 MCQs in the HSLC Science exam, practising MCQs from SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions is essential.

Topics covered in SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions include asexual reproduction, sexual reproduction in plants, human reproductive system, fertilisation, menstrual cycle, and reproductive health. Students searching for HSLC Science Chapter 8 How do Organisms Reproduce Important Questions or SEBA Class 10 Science Chapter 8 PYQs will find this resource highly useful.

SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Questions with PYQs and MCQs

A. Previous Year Questions with Answers

Q1. The process of giving rise to new individual organisms from the body parts of many fully differentiated organisms is known as — [HSLC 2023]
(i) Regeneration
(ii) Budding
(iii) Fragmentation
(iv) Fission
Answer: (i) Regeneration

Q2. Binary fission occurs in — [HSLC 2023]
(i) Amoeba
(ii) Paramoecium
(iii) Planaria
(iv) All of these
Answer: (i) Amoeba

Q3. Single-celled animals like amoeba reproduce by the process of _____ [HSLC 2024]
(A) binary fission
(B) multiple fission
(C) budding
(D) fragmentation
Answer: (A) binary fission

Q4. The anther contains _____ [HSLC 2024]
(A) sepals
(B) ovules
(C) carpels
(D) pollen grains
Answer: (D) pollen grains

Q5. Which of the following is not a part of the female reproductive system of human beings? [HSLC 2024]
(A) Ovary
(B) Uterus
(C) Vas deferens
(D) Fallopian tube
Answer: (C) Vas deferens

Q6. Asexual reproduction takes place through budding in [HSLC 2025]
(a) yeast
(b) amoeba
(c) leishmania
(d) plasmodium
Answer: (a) yeast

Q7. What happens when the egg is not fertilized? [HSLC 2025]
(a) Dies immediately
(b) Lives for about one day
(c) Lives for about one week
(d) All of the above
Answer: (a) Dies immediately

Q8. Flowers of hibiscus, mustard, etc. contain both stamens and carpels. Therefore, they are [HSLC 2025]
(a) unisexual
(b) bisexual
(c) grafting
(d) fragmentation
Answer: (b) bisexual

B. Extra Questions with Answers

Q1. What is the basic event in reproduction?
(i) Formation of gametes
(ii) Creation of a DNA copy
(iii) Pollination
(iv) Germination
Answer: (ii) Creation of a DNA copy

Q2. Which of the following is the main importance of variation during reproduction?
(i) It helps individuals grow faster
(ii) It ensures survival of species in changing environment
(iii) It prevents cell division
(iv) It stops mutation
Answer: (ii) It ensures survival of species in changing environment

Q3. Assertion (A): Regeneration is not the same as reproduction.
Reason (R): Most organisms do not normally depend on being cut up to reproduce.
(i) Both A and R are true and R is the correct explanation of A
(ii) Both A and R are true but R is not the correct explanation of A
(iii) A is true but R is false
(iv) A is false but R is true
Answer: (i) Both A and R are true and R is the correct explanation of A

Q4. In an experiment, yeast was added to sugar solution and kept in a warm place. Small outgrowths were observed under microscope. This mode of reproduction is known as —
(i) Binary fission
(ii) Multiple fission
(iii) Budding
(iv) Fragmentation
Answer: (iii) Budding

Q5. In Spirogyra, reproduction takes place by —
(i) Budding
(ii) Fragmentation
(iii) Spore formation
(iv) Regeneration
Answer: (ii) Fragmentation

Q6. Which of the following organisms reproduces by multiple fission?
(i) Amoeba
(ii) Leishmania
(iii) Plasmodium
(iv) Hydra
Answer: (iii) Plasmodium

Q7. Match the following:

Options:
(i) A–2, B–1, C–3, D–4
(ii) A–1, B–2, C–4, D–3
(iii) A–3, B–4, C–2, D–1
(iv) A–2, B–3, C–1, D–4
Answer: (i) A–2, B–1, C–3, D–4

Q8. Vegetative propagation in Bryophyllum occurs through —
(i) Roots
(ii) Stem
(iii) Leaves
(iv) Seeds
Answer: (iii) Leaves

Q9. Assertion (A): Sexual reproduction results in greater variation than asexual reproduction.
Reason (R): It involves combination of DNA from two different individuals.
(i) Both A and R are true and R is the correct explanation of A
(ii) Both A and R are true but R is not the correct explanation of A
(iii) A is true but R is false
(iv) A is false but R is true
Answer: (i) Both A and R are true and R is the correct explanation of A

Q10. Fertilisation in human beings normally takes place in the —
(i) Uterus
(ii) Vagina
(iii) Ovary
(iv) Fallopian tube
Answer: (iv) Fallopian tube

Q11. Which part of the flower contains the ovules?
(i) Stigma
(ii) Style
(iii) Ovary
(iv) Anther
Answer: (iii) Ovary

Q12. Transfer of pollen grains from anther to stigma of the same flower is called —
(i) Fertilisation
(ii) Germination
(iii) Self-pollination
(iv) Cross-pollination
Answer: (iii) Self-pollination

Q13. Assertion (A): The uterus prepares itself every month to receive a fertilised egg.
Reason (R): Its lining becomes thick and richly supplied with blood to nourish the embryo.
(i) Both A and R are true and R is the correct explanation of A
(ii) Both A and R are true but R is not the correct explanation of A
(iii) A is true but R is false
(iv) A is false but R is true
Answer: (i) Both A and R are true and R is the correct explanation of A

Q14. In the experiment with potato pieces placed on moist cotton, new shoots develop from —
(i) Any cut surface
(ii) Pieces without buds
(iii) Pieces containing buds or notches
(iv) The middle of the potato
Answer: (iii) Pieces containing buds or notches

Q15. The male germ-cell in human beings is known as —
(i) Ovum
(ii) Embryo
(iii) Sperm
(iv) Zygote
Answer: (iii) Sperm

Q16. Match the following:

Options:
(i) A–2, B–3, C–1, D–4
(ii) A–3, B–2, C–4, D–1
(iii) A–2, B–1, C–3, D–4
(iv) A–4, B–3, C–2, D–1
Answer: (i) A–2, B–3, C–1, D–4

Q17. The special tissue that provides nourishment to the developing embryo in human beings is called —
(i) Cervix
(ii) Placenta
(iii) Ovary
(iv) Vas deferens
Answer: (ii) Placenta

Q18. Assertion (A): Asexual reproduction produces genetically similar individuals.
Reason (R): It involves only one parent and DNA copying.
(i) Both A and R are true and R is the correct explanation of A
(ii) Both A and R are true but R is not the correct explanation of A
(iii) A is true but R is false
(iv) A is false but R is true
Answer: (i) Both A and R are true and R is the correct explanation of A

Q19. The surgical method used in males to prevent sperm transfer is —
(i) Tubectomy
(ii) Vasectomy
(iii) Copper-T
(iv) Oral pills
Answer: (ii) Vasectomy

Q20. In flowering plants, the zygote develops into —
(i) Pollen grain
(ii) Ovary
(iii) Embryo
(iv) Stigma
Answer: (iii) Embryo

Q21. Which of the following is an example of asexual reproduction?
(i) Pollination
(ii) Fertilisation
(iii) Budding in Hydra
(iv) Formation of gametes
Answer: (iii) Budding in Hydra

Q22. In Leishmania, binary fission occurs in a definite orientation because —
(i) It has no nucleus
(ii) It has a whip-like structure at one end
(iii) It forms spores
(iv) It reproduces sexually
Answer: (ii) It has a whip-like structure at one end

Q23. Assertion (A): Germ-cells in sexual reproduction contain half the number of chromosomes.
Reason (R): Fusion of two germ-cells restores the original chromosome number in the zygote.
(i) Both A and R are true and R is the correct explanation of A
(ii) Both A and R are true but R is not the correct explanation of A
(iii) A is true but R is false
(iv) A is false but R is true
Answer: (i) Both A and R are true and R is the correct explanation of A

Q24. In the experiment where bread was kept in a moist and dark place, the thread-like structures observed were —
(i) Sporangia
(ii) Spores
(iii) Hyphae
(iv) Buds
Answer: (iii) Hyphae

Q25. Which of the following is NOT a function of testosterone in males?
(i) Regulates formation of sperms
(ii) Brings about changes at puberty
(iii) Forms placenta
(iv) Develops secondary sexual characters
Answer: (iii) Forms placenta

Q26. Match the following:

Options:
(i) A–2, B–1, C–3, D–4
(ii) A–1, B–2, C–4, D–3
(iii) A–3, B–4, C–2, D–1
(iv) A–2, B–3, C–1, D–4
Answer: (i) A–2, B–1, C–3, D–4

Q27. The thick wall around spores helps them to —
(i) Move faster
(ii) Survive in unfavourable conditions
(iii) Increase size
(iv) Undergo fertilisation
Answer: (ii) Survive in unfavourable conditions

Q28. Assertion (A): Menstruation occurs when the egg is not fertilised.
Reason (R): The thickened uterine lining breaks down and is discharged.
(i) Both A and R are true and R is the correct explanation of A
(ii) Both A and R are true but R is not the correct explanation of A
(iii) A is true but R is false
(iv) A is false but R is true
Answer: (i) Both A and R are true and R is the correct explanation of A

Q29. Which of the following methods prevents pregnancy by creating a mechanical barrier?
(i) Oral pills
(ii) Copper-T
(iii) Condom
(iv) Hormonal injection
Answer: (iii) Condom

Q30. After fertilisation in flowering plants, the ovary develops into —
(i) Seed
(ii) Fruit
(iii) Embryo
(iv) Pollen tube
Answer: (ii) Fruit

Q31. Which structure grows out of the pollen grain to reach the ovule?
(i) Stamen
(ii) Pollen tube
(iii) Anther
(iv) Filament
Answer: (ii) Pollen tube

Q32. Which of the following is a bisexual flower?
(i) Papaya
(ii) Watermelon
(iii) Hibiscus
(iv) Cucumber
Answer: (iii) Hibiscus

Q33. Assertion (A): Reproduction is not essential for the survival of an individual organism.
Reason (R): Reproduction is required for maintaining the population of a species.
(i) Both A and R are true and R is the correct explanation of A
(ii) Both A and R are true but R is not the correct explanation of A
(iii) A is true but R is false
(iv) A is false but R is true
Answer: (ii) Both A and R are true but R is not the correct explanation of A

Q34. The hormone responsible for bringing about changes at puberty in boys is —
(i) Oestrogen
(ii) Progesterone
(iii) Testosterone
(iv) Adrenaline
Answer: (iii) Testosterone

Q35. Which part of the female reproductive system receives the sperms during sexual intercourse?
(i) Ovary
(ii) Uterus
(iii) Vagina
(iv) Fallopian tube
Answer: (iii) Vagina

Q36. Match the following:

Options:
(i) A–2, B–1, C–3, D–4
(ii) A–1, B–2, C–4, D–3
(iii) A–3, B–4, C–2, D–1
(iv) A–2, B–3, C–1, D–4
Answer: (i) A–2, B–1, C–3, D–4

Q37. Which contraceptive method works by changing the hormonal balance of the body?
(i) Condom
(ii) Oral pills
(iii) Copper-T
(iv) Vasectomy
Answer: (ii) Oral pills

Q38. Assertion (A): Plants raised by vegetative propagation are genetically similar to the parent plant.
Reason (R): Vegetative propagation involves only one parent without fusion of gametes.
(i) Both A and R are true and R is the correct explanation of A
(ii) Both A and R are true but R is not the correct explanation of A
(iii) A is true but R is false
(iv) A is false but R is true
Answer: (i) Both A and R are true and R is the correct explanation of A

Q39. The organ where implantation of the zygote occurs in human females is —
(i) Ovary
(ii) Oviduct
(iii) Uterus
(iv) Cervix
Answer: (iii) Uterus

Q40. Which of the following organisms reproduces by budding?
(i) Amoeba
(ii) Hydra
(iii) Plasmodium
(iv) Leishmania
Answer: (ii) Hydra

Q41. Which of the following is a unisexual flower?
(i) Hibiscus
(ii) Mustard
(iii) Papaya
(iv) Rose
Answer: (iii) Papaya

Q42. The male germ-cell in flowering plants is present inside the —
(i) Ovule
(ii) Ovary
(iii) Pollen grain
(iv) Stigma
Answer: (iii) Pollen grain

Q43. Assertion (A): DNA copying is not absolutely accurate.
Reason (R): Variations arise during reproduction due to minor errors in DNA copying.
(i) Both A and R are true and R is the correct explanation of A
(ii) Both A and R are true but R is not the correct explanation of A
(iii) A is true but R is false
(iv) A is false but R is true
Answer: (i) Both A and R are true and R is the correct explanation of A

Q44. Which of the following structures is embedded in the uterine wall and provides nourishment to the embryo?
(i) Cervix
(ii) Placenta
(iii) Ovary
(iv) Oviduct
Answer: (ii) Placenta

Q45. In Amoeba, binary fission can occur —
(i) Only in longitudinal plane
(ii) Only in transverse plane
(iii) In any plane
(iv) In a definite orientation
Answer: (iii) In any plane

Q46. Match the following:

Options:
(i) A–2, B–1, C–3, D–4
(ii) A–1, B–2, C–4, D–3
(iii) A–3, B–4, C–2, D–1
(iv) A–2, B–3, C–1, D–4
Answer: (i) A–2, B–1, C–3, D–4

Q47. The part of the male reproductive system where sperms are produced is —
(i) Vas deferens
(ii) Testes
(iii) Urethra
(iv) Prostate gland
Answer: (ii) Testes

Q48. If the fallopian tube in a female is surgically blocked, it prevents —
(i) Formation of eggs
(ii) Menstruation
(iii) Fertilisation
(iv) Hormone production
Answer: (iii) Fertilisation

Q49. Assertion (A): Sexual reproduction generates more variation than asexual reproduction.
Reason (R): It combines variations from two different individuals.
(i) Both A and R are true and R is the correct explanation of A
(ii) Both A and R are true but R is not the correct explanation of A
(iii) A is true but R is false
(iv) A is false but R is true
Answer: (i) Both A and R are true and R is the correct explanation of A

Q50. Which of the following diseases is sexually transmitted as mentioned in the chapter?
(i) Tuberculosis
(ii) Malaria
(iii) Gonorrhoea
(iv) Cholera
Answer: (iii) Gonorrhoea

SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions for HSLC Exam 2026–27

The SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions provided here are prepared according to the latest SEBA (ASSEB) syllabus 2026–27. These SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions include conceptual MCQs, short answer questions, long answer questions, and diagram-based questions aligned with the HSLC exam pattern.

As per the latest HSLC structure, students must attempt 45 MCQs. Therefore, regular practice of SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions ensures better preparation for MCQ-based and reasoning-type questions.

The SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions cover modes of asexual reproduction, sexual reproduction in flowering plants, structure of male and female reproductive systems, fertilisation process, and adolescent health. Continuous revision using SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions improves conceptual clarity and answer presentation.

These Class 10 How do Organisms Reproduce Important Questions with MCQs are ideal for final revision. Consistent practice of SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions strengthens exam confidence and scoring performance.

Frequently Asked Questions (FAQ)

1. Why is Chapter 8 How do Organisms Reproduce important for HSLC exam?

This chapter explains asexual and sexual reproduction, fertilisation, and human reproductive system which are frequently asked in HSLC Science exams.

2. How many MCQs are asked in HSLC Science exam?

Students must answer 45 MCQs as per the latest HSLC Science examination pattern.

3. Are MCQs included in How do Organisms Reproduce important questions?

Yes, conceptual and diagram-based MCQs are included according to the updated HSLC exam structure.

4. Are these questions based on SEBA syllabus?

Yes, all questions are prepared strictly according to the latest SEBA (ASSEB) syllabus for 2026–27.

5. Do these include previous year questions?

Yes, previous year questions are included to help students understand HSLC exam trends.

6. Which topics are covered in Chapter 8?

Topics include asexual reproduction, sexual reproduction in plants, human reproductive system, fertilisation, and reproductive health.

7. Can practising these improve exam performance?

Yes, regular revision improves conceptual clarity, diagram accuracy, and MCQ performance in the HSLC examination.

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Class 10 Chapter 8 How do Organisms Reproduce PYQs

SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions | Assam Eduverse

SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Questions with PYQs and MCQs

Table of Contents

A. Previous Year Questions with Answers

B. Extra Questions with Answers

SEBA Class 10 Science Chapter 8 How do Organisms Reproduce Important Extra Questions for HSLC Exam 2026–27

Frequently Asked Questions (FAQ)

1. Why is Chapter 8 How do Organisms Reproduce important for HSLC exam?

2. How many MCQs are asked in HSLC Science exam?

3. Are MCQs included in How do Organisms Reproduce important questions?

4. Are these questions based on SEBA syllabus?

5. Do these include previous year questions?

6. Which topics are covered in Chapter 8?

7. Can practising these improve exam performance?

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