This set of Molecular Endocrinology Multiple Choice Questions & Answers (MCQs) focuses on “Progesterone-Metabolic Role”.
1. What is the action of progesterone in the estrogen primed endometrium?
a) Produces characteristic changes
b) Rupture the walls
c) Increase the thickness
d) Reduce the thickness
View Answer
Explanation: Progesterone causes characteristic (progestational) changes in the estrogen-primed endometrium in humans. This hormone begins its action after ovulation. Progesterone is completely important to allow the endometrium to be responsive to the implanting embryo during the secretory process.
2. Which enzyme is reduced by progesterone in the epithelial cells of the endometrium?
a) Acetylases
b) Alkaline phosphatase
c) Lyases
d) Isomerase
View Answer
Explanation: Alkaline phosphatase is reduced by progesterone in the epithelial cells of the endometrium. There are also other characteristic changes caused by progesterone in the epithelial cells of endometrium which are primed by the estrogen.
3. What is the role of progesterone in the activity of mammary glands?
a) Inhibits mammary gland
b) Helps in the ejection of milk
c) Stimulates the mammary gland
d) Helps in the formation of milk
View Answer
Explanation: The mammary glands are often activated by estrogen hormone. Progesterone, in combination with estrogen, triggers the growth of the alveolar system of the breasts and it sensitizes them to lactogenic hormone action.
4. Progesterone suppresses Pituitary Luteinizing Hormone.
a) True
b) False
View Answer
Explanation: Estrus, ovulation and pituitary luteinizing hormone production are all suppressed by the progesterone hormone. During the menstrual cycle, progesterone modifies the action of estrogen on the vaginal epithelium.
5. Estrogen prepares uterus for the embedding of the embryo.
a) True
b) False
View Answer
Explanation: Progesterone allows the endometrium to develop extensively. This prepares the uterus for the embryo’s embedding and its nutrition. Progesterone prepares the endometrium for the post-ovulation potential of pregnancy. To accept a fertilized egg, it causes the lining to thicken.
6. Which among the luteal hormones is responsible for the rise in basal temperature during the corpus luteal stage of menstrual cycle?
a) Estrogen
b) Progesterone
c) Androstenedione
d) Testosterone
View Answer
Explanation: Progesterone is responsible for the basal temperature increase that occurs during the normal menstrual cycle’s corpus luteum period. This is because of the rise in basal metabolic rate (BMR). Basal body temperature (BBT) is one measure individuals should check for contraception while using fertility awareness-based method (FAM).
7. What is the role of progesterone in maintaining water and electrolyte balance in humans?
a) Favors reabsorption
b) Favors retention
c) No effect
d) Decreases the electrolyte concentration in the blood
View Answer
Explanation: In various animals, the hormonal effects on the metabolism of electrolytes and water differ. It tends to support the retention of Na, Cl and water in dogs and rodents. There is evidence in humans that it exerts an opposite impact.
Sanfoundry Global Education & Learning Series – Molecular Endocrinology.
To practice all areas of Molecular Endocrinology, here is complete set of 1000+ Multiple Choice Questions and Answers.
