Practice Questions →

Chapter 3: Human Reproduction

NCERT Solutions for CBSE Class 10 Biology — 18 solved questions with detailed explanations.

18

Questions

0

Topics

Solved Questions

Q1. The site of fertilization in the human female is:

Uterus
Vagina
Ampulla of fallopian tube
Ovary

Difficulty: Easy · Topic: Fertilization

Solution

Fertilization occurs in the ampulla-isthmic junction of the fallopian tube (oviduct).

Q2. The hormone responsible for maintaining pregnancy is:

Estrogen
FSH
LH
Progesterone

Difficulty: Easy · Topic: Pregnancy Hormones

Solution

Progesterone (from corpus luteum, later placenta) maintains the uterine lining and supports pregnancy.

Q3. Implantation of the blastocyst occurs in the:

Vagina
Cervix
Endometrium of uterus
Fallopian tube

Difficulty: Easy · Topic: Implantation

Solution

Implantation: blastocyst embeds in the endometrium (uterine wall) about 6-7 days after fertilization.

Q4. Spermatogenesis occurs in:

prostate
vas deferens
epididymis
seminiferous tubules of testis

Difficulty: Easy · Topic: Human Reproduction

Solution

seminiferous tubules of testis.

Q5. Oogenesis begins in:

fetal ovary
after menopause
after menarche
puberty

Difficulty: Easy · Topic: Human Reproduction

Solution

fetal ovary.

Q6. HCG is secreted by:

uterus
placenta (trophoblast)
ovary
pituitary

Difficulty: Easy · Topic: Human Reproduction

Solution

placenta (trophoblast).

Q7. Placenta provides:

only waste removal
nutrition and gas exchange to fetus
only protection
only hormones

Difficulty: Easy · Topic: Human Reproduction

Solution

nutrition and gas exchange to fetus.

Q8. Parturition is triggered by:

oxytocin
estrogen
progesterone
FSH

Difficulty: Easy · Topic: Human Reproduction

Solution

oxytocin.

Q9. FSH is secreted by:

Posterior pituitary
Testis
Ovary
Anterior pituitary

Difficulty: Easy · Topic: Hormones

Solution

FSH is produced by Anterior pituitary.

Q10. LH is secreted by:

Ovary
Testis
Posterior pituitary
Anterior pituitary

Difficulty: Easy · Topic: Hormones

Solution

LH is produced by Anterior pituitary.

Q11. Estrogen is secreted by:

Testis
Ovary
Adrenal
Pituitary

Difficulty: Easy · Topic: Hormones

Solution

Estrogen is produced by Ovary.

Q12. Testosterone is secreted by:

Adrenal
Testis (Leydig cells)
Ovary
Pituitary

Difficulty: Easy · Topic: Hormones

Solution

Testosterone is produced by Testis (Leydig cells).

Q13. Progesterone is secreted by:

Pituitary
Thyroid
Testis
Corpus luteum/Placenta

Difficulty: Easy · Topic: Hormones

Solution

Progesterone is produced by Corpus luteum/Placenta.

Q14. Spermatogenesis produces:

1 sperm
2 sperms
8 sperms
4 sperms from each primary spermatocyte

Difficulty: Easy · Topic: Reproduction

Solution

4 sperms from each primary spermatocyte.

Q15. Oogenesis produces:

1 ovum only
1 ovum + 3 polar bodies
4 ova
2 ova

Difficulty: Easy · Topic: Reproduction

Solution

1 ovum + 3 polar bodies.

Q16. Menstrual cycle in humans is approximately:

35 days
7 days
14 days
28 days

Difficulty: Easy · Topic: Reproduction

Solution

28 days.

Q17. Ovulation occurs on approximately day:

14 of menstrual cycle
7
1
28

Difficulty: Easy · Topic: Reproduction

Solution

14 of menstrual cycle.

Q18. Colostrum contains:

no nutrients
toxins
only water
antibodies (IgA)

Difficulty: Easy-Medium · Topic: Human Reproduction

Solution

antibodies (IgA).

Other Chapters in Biology

Ch 1: Reproduction in Organisms Ch 2: Sexual Reproduction in Plants Ch 4: Reproductive Health Ch 5: Principles of Inheritance Ch 6: Molecular Basis of Inheritance Ch 7: Evolution Ch 8: Human Health & Disease Ch 9: Strategies for Enhancement Ch 10: Microbes in Human Welfare Ch 11: Biotechnology Principles Ch 12: Biotechnology Applications Ch 13: Organisms & Populations Ch 14: Ecosystem Ch 15: Biodiversity & Conservation Ch 16: Environmental Issues

Want to practice these questions interactively?

Get instant feedback, track progress, and improve with adaptive practice.

Start Practicing Free →