1. Which of the following hormones is produced by the hypothalamus to regulate the release of FSH and LH?
a) Prolactin
b) GnRH
c) Estrogen
d) Progesterone
Answer: b) GnRH
2. What is the primary function of Follicle-Stimulating Hormone (FSH) in females?
a) Stimulate ovulation
b) Stimulate the development of ovarian follicles
c) Increase progesterone production
d) Inhibit the release of estrogen
Answer: b) Stimulate the development of ovarian follicles
3. Which hormone is responsible for stimulating the release of ovum (egg) during ovulation?
a) Estrogen
b) Progesterone
c) Luteinizing hormone (LH)
d) Prolactin
Answer: c) Luteinizing hormone (LH)
4. The release of which hormone leads to the formation of the corpus luteum?
a) Progesterone
b) Estrogen
c) LH
d) FSH
Answer: c) LH
5. What is the role of progesterone in the menstrual cycle?
a) Inhibit ovulation
b) Stimulate the growth of the endometrium
c) Stimulate the release of FSH
d) Trigger menstruation
Answer: b) Stimulate the growth of the endometrium
6. In males, what is the primary function of Follicle-Stimulating Hormone (FSH)?
a) Stimulate the production of testosterone
b) Stimulate sperm production
c) Stimulate the development of seminiferous tubules
d) Inhibit the production of sperm
Answer: b) Stimulate sperm production
7. Which of the following is the primary function of testosterone in males?
a) Stimulate the development of secondary sexual characteristics
b) Stimulate the release of LH
c) Stimulate the development of ovarian follicles
d) Regulate the menstrual cycle
Answer: a) Stimulate the development of secondary sexual characteristics
8. The secretion of estrogen during the menstrual cycle is primarily produced by the:
a) Pituitary gland
b) Ovaries
c) Placenta
d) Hypothalamus
Answer: b) Ovaries
9. Which hormone maintains the corpus luteum during early pregnancy?
a) Estrogen
b) Progesterone
c) hCG (Human Chorionic Gonadotropin)
d) FSH
Answer: c) hCG (Human Chorionic Gonadotropin)
10. During which phase of the menstrual cycle does the level of estrogen peak?
a) Follicular phase
b) Luteal phase
c) Ovulation
d) Menstrual phase
Answer: a) Follicular phase
11. Which hormone is primarily responsible for initiating labor in females?
a) Estrogen
b) Oxytocin
c) Progesterone
d) Relaxin
Answer: b) Oxytocin
12. What is the main function of Prolactin in the female reproductive system?
a) Stimulate ovulation
b) Maintain the corpus luteum
c) Stimulate milk production
d) Regulate the menstrual cycle
Answer: c) Stimulate milk production
13. During the menstrual cycle, the sudden surge in which hormone triggers ovulation?
a) FSH
b) LH
c) Progesterone
d) Estrogen
Answer: b) LH
14. The secretion of which hormone decreases just before menstruation?
a) Estrogen
b) Progesterone
c) LH
d) FSH
Answer: b) Progesterone
15. What is the function of the hormone Relaxin during pregnancy?
a) Stimulate uterine contractions
b) Relax the uterus and pelvic ligaments
c) Increase blood flow to the placenta
d) Regulate the release of FSH
Answer: b) Relax the uterus and pelvic ligaments
16. Which hormone is responsible for preparing the uterus for implantation after ovulation?
a) FSH
b) Estrogen
c) Progesterone
d) LH
Answer: c) Progesterone
17. In males, what effect does Luteinizing Hormone (LH) have?
a) Stimulate sperm production
b) Stimulate the secretion of testosterone from Leydig cells
c) Inhibit testosterone production
d) Regulate the menstrual cycle
Answer: b) Stimulate the secretion of testosterone from Leydig cells
18. What is the role of human chorionic gonadotropin (hCG) during pregnancy?
a) Stimulate milk production
b) Prevent the degeneration of the corpus luteum
c) Stimulate ovulation
d) Induce uterine contractions
Answer: b) Prevent the degeneration of the corpus luteum
19. Which hormone helps in the thickening of the endometrial lining to support embryo implantation?
a) Estrogen
b) Progesterone
c) Testosterone
d) LH
Answer: b) Progesterone
20. Which hormone is responsible for the development of male secondary sexual characteristics like facial hair?
a) Estrogen
b) Progesterone
c) Testosterone
d) FSH
Answer: c) Testosterone
21. Which hormone’s levels remain elevated in the blood during pregnancy to help maintain pregnancy?
a) Estrogen
b) Progesterone
c) hCG
d) LH
Answer: b) Progesterone
22. What effect does estrogen have on the cervix during ovulation?
a) Thickens the cervical mucus
b) Causes cervical mucus to thin and become more slippery
c) Prevents ovulation
d) Stimulates progesterone release
Answer: b) Causes cervical mucus to thin and become more slippery
23. In females, the secretion of which hormone is highest during the luteal phase?
a) Estrogen
b) LH
c) FSH
d) Progesterone
Answer: d) Progesterone
24. The secretion of which hormone is involved in the regulation of spermatogenesis in males?
a) Prolactin
b) FSH
c) LH
d) Testosterone
Answer: b) FSH
25. The release of prolactin from the anterior pituitary is primarily controlled by:
a) Estrogen
b) Dopamine
c) Progesterone
d) Oxytocin
Answer: b) Dopamine
26. What is the main role of the hormone inhibin in males?
a) Stimulate sperm production
b) Inhibit FSH secretion
c) Stimulate testosterone production
d) Initiate ovulation
Answer: b) Inhibit FSH secretion
27. What is the purpose of the surge in LH and FSH before ovulation?
a) To trigger the development of the corpus luteum
b) To stimulate the maturation of the egg
c) To prepare the uterus for implantation
d) To initiate the menstrual flow
Answer: b) To stimulate the maturation of the egg
28. What hormone is primarily responsible for the development of the female secondary sexual characteristics?
a) Estrogen
b) Progesterone
c) Testosterone
d) FSH
Answer: a) Estrogen
29. Which hormone helps in the relaxation of uterine muscles to allow the fetus to grow during pregnancy?
a) Relaxin
b) Estrogen
c) Progesterone
d) LH
Answer: a) Relaxin
30. Which of the following hormones is released from the anterior pituitary gland in response to GnRH?
a) FSH and LH
b) Estrogen and progesterone
c) Prolactin
d) Testosterone
Answer: a) FSH and LH
