The hormone that stimulates the secretion of cortisol from the adrenal cortex is: MCQ with Answer and Explanation

The hormone that stimulates the secretion of cortisol from the adrenal cortex is:
A. ACTH
B. FSH
C. Prolactin
D. TSH
Answer: Option A
Solution (By JKSSB Mock Tests)
Adrenocorticotropic hormone (ACTH) from the anterior pituitary stimulates the adrenal cortex to produce cortisol and androgens. TSH stimulates thyroid, FSH gonads.

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Practice More Biology Questions

Question #1
Archaeopteryx is considered a connecting link between:
A. Birds and mammals
B. Reptiles and mammals
C. Reptiles and birds
D. Fish and amphibians

Correct Answer: Option C


Explanation:
Archaeopteryx is a famous fossil that exhibits characteristics of both reptiles and birds, making it a classic connecting link. It had reptilian features like teeth, a long bony tail, and clawed fingers, but also avian features like feathers, wings, and a bird-like beak. It provides strong evidence for the evolutionary theory that birds evolved from theropod dinosaurs.

This question belongs to: Science Biology
Question #2
The hormone that stimulates the formation of red blood cells is:
A. Erythropoietin
B. Colony-stimulating factor
C. Thrombopoietin
D. Interleukin

Correct Answer: Option A


Explanation:
Erythropoietin (EPO), mainly from kidneys, promotes erythropoiesis in bone marrow. Thrombopoietin stimulates platelets, interleukins are immune cytokines, CSFs for white blood cells. EPO is used to treat anemia.

This question belongs to: Science Biology
Question #3
Consider the following statements about the skeletal system:
1. Bones store calcium and phosphorus.
2. Red bone marrow produces blood cells.
3. Ligaments connect muscle to bone.
Which of the above is/are correct?
A. 1 and 2 only
B. 1, 2, and 3
C. 1 and 3 only
D. 2 and 3 only

Correct Answer: Option A


Explanation:
Bones store minerals (1) and contain marrow for hematopoiesis (2). Ligaments connect bone to bone; tendons connect muscle to bone. So 3 is incorrect.

This question belongs to: Science Biology