Biology · General Awareness

Human Endocrine System

1,530 Questions

The human endocrine system comprises glands that secrete hormones to regulate bodily functions like metabolism, growth, and reproduction. Competitive exams frequently test the specific roles of hormones such as adrenaline, insulin, and progesterone. Use these questions to master the locations and functions of different hormones.

Hormone functionsIslets of LangerhansFight or flight responseBlood pressure regulationFemale sex hormonesWater soluble hormones

Human Endocrine System Questions

Multiple choice

In an experiment, luteinising hormone is injected into the body of adult males. What do you expect?

  1. More of testosterone is produced

  2. Less of testosterone is produced

  3. There is no effect on the production of testosterone

  4. Sperm production will increase
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When luteinizing hormone is injected into the body of adult males, more of testosterone is produced because testosterone produced is under the control of luteinizing hormone.

Multiple choice

The hormone progesterone is secreted by

  1. developing graafian follicles

  2. corpus luteum

  3. the entire ovary

  4. Leydig cells
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The hormone progesterone is secreted by developing graafian follicles.

Multiple choice

Prohormones are

  1. active form of hormones

  2. inactive form of hormones

  3. Both (1) and (2)

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Prohormones are inactive form of hormones.  Though not hormones themselves, prohormones amplify the effects of existing hormones.

Multiple choice

Aldosterone is secreted by

  1. anterior pituitary gland

  2. adrenal medulla

  3. posterior pituitary gland

  4. adrenal cortex
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Adrenal cortex secretes aldosterone which increases water absorption in kidneys.

Multiple choice

Fight-or-flight response is the effect of

  1. epinephrine secreted by adrenal gland

  2. antidiuretic hormone secreted by the pituitary gland

  3. adrenocorticotropic hormone secreted by the pituitary gland

  4. insulin secreted by the pancreas
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Epinephrine secreted by the adrenal gland regulates stress responses.