Hormones and Their Functions MCQs

1. Which hormone is secreted by the pancreas to regulate blood sugar levels?
(A) Insulin
(B) Glucagon
(C) Cortisol
(D) Thyroxine

2. The hormone that regulates metabolism and is produced by the thyroid gland is:
(A) Insulin
(B) Adrenaline
(C) Thyroxine
(D) Estrogen

3. Which hormone is released by the adrenal glands during stress?
(A) Insulin
(B) Cortisol
(C) Progesterone
(D) Testosterone

4. Which hormone is responsible for the development of secondary sexual characteristics in females?
(A) Estrogen
(B) Progesterone
(C) Testosterone
(D) Follicle-stimulating hormone

5. Which hormone is released by the pituitary gland and stimulates milk production in females?
(A) Prolactin
(B) Oxytocin
(C) Estrogen
(D) Progesterone

6. Which of the following hormones is involved in regulating the sleep-wake cycle?
(A) Melatonin
(B) Insulin
(C) Cortisol
(D) Adrenaline

7. Which hormone is known as the “fight or flight” hormone?
(A) Insulin
(B) Adrenaline
(C) Progesterone
(D) Thyroxine

8. Which hormone helps to lower blood calcium levels?
(A) Parathyroid hormone
(B) Calcitonin
(C) Thyroxine
(D) Insulin

9. The hormone that stimulates the production of red blood cells in bone marrow is:
(A) Erythropoietin
(B) Thyroxine
(C) Testosterone
(D) Growth hormone

10. Which hormone plays a key role in regulating the menstrual cycle in females?
(A) Progesterone
(B) Estrogen
(C) Luteinizing hormone
(D) All of the above