Q. What is the primary action of cortisol in the body?
A.
Promotes inflammation
B.
Increases blood glucose levels
C.
Stimulates insulin secretion
D.
Decreases protein synthesis
Solution
Cortisol is a glucocorticoid hormone that increases blood glucose levels by promoting gluconeogenesis and inhibiting glucose uptake in non-target tissues.
Correct Answer:
B
— Increases blood glucose levels
Q. What is the role of glucagon in glucose metabolism?
A.
Increases glycogen synthesis
B.
Stimulates gluconeogenesis
C.
Inhibits lipolysis
D.
Decreases blood glucose levels
Solution
Glucagon is produced by the alpha cells of the pancreas and increases blood glucose levels by stimulating gluconeogenesis and glycogenolysis in the liver.
Q. Which hormone is primarily responsible for the regulation of calcium levels in the blood?
A.
Calcitonin
B.
Parathyroid hormone
C.
Insulin
D.
Cortisol
Solution
Parathyroid hormone (PTH) increases blood calcium levels by promoting the release of calcium from bones, reabsorption in the kidneys, and absorption in the intestines.
