Question 91:
Which hormone increases during the follicular phase of the menstrual cycle?
A) Progesterone
B) Estrogen
C) Luteinizing hormone (LH)
D) Follicle-stimulating hormone (FSH)
Answer: D) Follicle-stimulating hormone (FSH)
Explanation: FSH levels rise during the follicular phase, stimulating the growth and maturation of ovarian follicles.
Question 92:
Which hormone is involved in promoting gluconeogenesis in the liver?
A) Insulin
B) Glucagon
C) Thyroxine
D) Somatostatin
Answer: B) Glucagon
Explanation: Glucagon promotes gluconeogenesis, the production of glucose from non-carbohydrate sources, in the liver to increase blood sugar levels.
Question 93:
What is the primary effect of growth hormone (GH) on adipose tissue?
A) Increases fat storage
B) Promotes fat breakdown
C) Stimulates insulin sensitivity
D) Decreases fat metabolism
Answer: B) Promotes fat breakdown
Explanation: Growth hormone (GH) promotes lipolysis, leading to the breakdown of fat stores for energy use.
Question 94:
Which hormone is responsible for regulating sodium reabsorption in the kidneys?
A) Cortisol
B) Aldosterone
C) Insulin
D) Thyroxine
Answer: B) Aldosterone
Explanation: Aldosterone increases sodium reabsorption in the kidneys, which helps to regulate blood pressure and fluid balance.
Question 95:
What is the role of testosterone in males?
A) Promotes development of female characteristics
B) Regulates blood sugar levels
C) Stimulates sperm production and male characteristics
D) Increases milk production
Answer: C) Stimulates sperm production and male characteristics
Explanation: Testosterone is the primary male sex hormone that promotes the development of male reproductive tissues and secondary sexual characteristics, including sperm production.
Question 96:
Which hormone has a significant effect on the body’s metabolism during stress?
A) Insulin
B) Cortisol
C) Thyroxine
D) Growth hormone
Answer: B) Cortisol
Explanation: Cortisol increases blood sugar levels and affects metabolism during stress by promoting gluconeogenesis and mobilizing fatty acids.
Question 97:
Which hormone is primarily responsible for regulating the female menstrual cycle?
A) Testosterone
B) Luteinizing hormone (LH)
C) Follicle-stimulating hormone (FSH)
D) Both B and C
Answer: D) Both B and C
Explanation: Both LH and FSH are crucial for regulating the female menstrual cycle, stimulating follicle development and ovulation.
Question 98:
Which hormone is released by the kidneys to regulate blood pressure?
A) Aldosterone
B) Erythropoietin
C) Renin
D) Insulin
Answer: C) Renin
Explanation: Renin is released by the kidneys in response to low blood pressure, leading to the production of angiotensin II, which raises blood pressure.
Question 99:
Which hormone increases during pregnancy to support fetal development?
A) Cortisol
B) Progesterone
C) Estrogen
D) Both B and C
Answer: D) Both B and C
Explanation: Both progesterone and estrogen levels increase significantly during pregnancy to maintain the uterine lining and support fetal development.
Question 100:
What is the function of the hormone somatostatin?
A) Stimulates growth
B) Inhibits insulin and glucagon release
C) Increases metabolism
D) Promotes fat storage
Answer: B) Inhibits insulin and glucagon release
Explanation: Somatostatin inhibits the release of both insulin and glucagon, helping to regulate glucose metabolism.
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