Human reproduction

Human reproduction class 12 , 30 mcq

“

These questions are categorized by difficulty and type to ensure you cover the entire chapter.

## **Part 1: Multiple Choice Questions (MCQs)**

1. **Where does fertilization take place in the female reproductive tract?**

* (a) Ovary (b) Uterus (c) Fallopian Tube (d) Vagina

2. **The hormone responsible for the milk-ejection reflex is:**

* (a) Estrogen (b) Progesterone (c) Oxytocin (d) Prolactin

3. **Which part of the sperm contains enzymes to penetrate the egg?**

* (a) Tail (b) Middle piece (c) Acrosome (d) Nucleus

4. **The process of release of an egg from the ovary is called:**

* (a) Implantation (b) Ovulation (c) Gestation (d) Parturition

5. **What is the normal duration of the human gestation period?**

* (a) 150 days (b) 200 days (c) 280 days (d) 350 days

6. **The “yellow body” formed after ovulation is called:**

* (a) Corpus luteum (b) Corpus albicans (c) Graafian follicle (d) Zygote

7. **Spermatogenesis is initiated by which hormone?**

* (a) GnRH (b) LH (c) FSH (d) Insulin

8. **The primary germ layers formed during gastrulation are:**

* (a) Ectoderm (b) Mesoderm (c) Endoderm (d) All of the above

9. **Which of the following is a temporary endocrine gland?**

* (a) Pineal (b) Pancreas (c) Placenta (d) Liver

10. **Sertoli cells provide nourishment to:**

* (a) Ova (b) Spermatozoa (c) Follicles (d) Endometrium

## **Part 2: Short Answer Questions (2-3 Marks)**

11. Why are the testes situated outside the abdominal cavity?

12. Define **Spermiogenesis** and **Spermiation**.

13. Draw a labeled diagram of the human sperm.

14. What are the major components of **Seminal Plasma**?

15. Mention the functions of **LH** and **FSH** in females.

16. What is **Menarche** and how is it different from **Menopause**?

17. Define **Blastocyst**. In which stage does it get implanted?

18. Name the hormones secreted by the **Placenta**.

19. What is the role of the **Epididymis** in the male reproductive system?

20. What is **Colostrum** and why is it important for a newborn baby?

## **Part 3: Long Answer Questions (5 Marks)**

21. Describe the structure of the **Female Reproductive System** with a labeled diagram.

22. Explain the process of **Spermatogenesis** with a schematic flow chart.

23. Describe the various phases of the **Menstrual Cycle** in detail.

24. What is **Oogenesis**? Explain the phases of egg formation.

25. Explain the process of **Fertilization** and how it leads to the formation of a zygote.

26. Discuss the development of the embryo from **Implantation** to the end of the first trimester.

27. Describe the mechanism of **Parturition** (Childbirth).

28. Explain the role of the **Endocrine system** in regulating human reproduction.

29. Compare and contrast **Spermatogenesis** and **Oogenesis**.

30. Write a detailed note on the structure and functions of the **Placenta**.

### **Quick Study Tip:**

* **For MCQs:** Focus on hormones (LH, FSH, hCG) and locations (Fallopian tube, Seminiferous tubules).

* **For Diagrams:** Practice the **Sperm**, **Male/Female Systems**, and the **Ovary cross-section**.

* **For Comparison:** Remember that Spermatogenesis produces 4 cells, while Oogenesis produces only 1 functional egg.

WRITE MY PAPER