Biology ยท 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

Which of the following hormones is NOT produced by the hypothalamus?

  1. Antidiuretic hormone

  2. Oxytocin

  3. Prolactin

  4. Thyroid-stimulating hormone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Thyroid-stimulating hormone is produced by the pituitary gland, not the hypothalamus.

Multiple choice

Which hormone is primarily responsible for regulating the sleep-wake cycle?

  1. Melatonin

  2. Serotonin

  3. Dopamine

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

Melatonin is a hormone produced by the pineal gland that helps regulate the body's sleep-wake cycle.

Multiple choice

Which hormone stimulates gluconeogenesis?

  1. Insulin

  2. Glucagon

  3. Epinephrine

  4. Cortisol

  5. All of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Gluconeogenesis is stimulated by several hormones, including insulin, glucagon, epinephrine, and cortisol.

Multiple choice

Which hormone is responsible for regulating blood sugar levels?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Insulin is a hormone produced by the pancreas that helps regulate blood sugar levels. It allows cells to take in glucose from the blood and use it for energy.

Multiple choice

Which hormone is responsible for regulating growth and development?

  1. Epinephrine

  2. Thyroxine

  3. Growth hormone

  4. Progesterone
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Growth hormone is a hormone produced by the pituitary gland that stimulates growth and development in children and adolescents. It also helps regulate metabolism and body composition.

Multiple choice

Which hormone is responsible for regulating the menstrual cycle and pregnancy?

  1. Epinephrine

  2. Thyroxine

  3. Estrogen

  4. Testosterone
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Estrogen is a hormone produced by the ovaries that plays a key role in regulating the menstrual cycle and pregnancy. It helps prepare the uterus for implantation of a fertilized egg and maintains the pregnancy.

Multiple choice

Which hormone is responsible for regulating the fight-or-flight response?

  1. Insulin

  2. Glucagon

  3. Epinephrine

  4. Thyroxine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Epinephrine is a hormone produced by the adrenal glands that prepares the body for the fight-or-flight response. It increases heart rate, blood pressure, and breathing, and diverts blood flow to muscles.

Multiple choice

Which hormone is responsible for regulating metabolism?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Thyroxine is a hormone produced by the thyroid gland that regulates metabolism. It helps control the rate at which the body burns calories and produces energy.

Multiple choice

Which hormone is responsible for regulating sleep-wake cycles?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Melatonin is a hormone produced by the pineal gland that helps regulate sleep-wake cycles. It is released in response to darkness and helps promote sleepiness.

Multiple choice

Which hormone is responsible for regulating milk production in women?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Prolactin is a hormone produced by the pituitary gland that stimulates milk production in women after childbirth.

Multiple choice

Which hormone is responsible for regulating the release of other hormones?

  1. Insulin

  2. Glucagon

  3. Epinephrine

  4. Corticotropin-releasing hormone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Corticotropin-releasing hormone is a hormone produced by the hypothalamus that stimulates the release of other hormones, including adrenocorticotropic hormone (ACTH) and prolactin.

Multiple choice

Which hormone is responsible for regulating calcium and phosphate levels in the blood?

  1. Insulin

  2. Glucagon

  3. Epinephrine

  4. Parathyroid hormone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Parathyroid hormone is a hormone produced by the parathyroid glands that helps regulate calcium and phosphate levels in the blood.

Multiple choice

Which hormone is responsible for regulating the production of red blood cells?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Erythropoietin is a hormone produced by the kidneys that stimulates the production of red blood cells in the bone marrow.

Multiple choice

Which hormone is responsible for regulating the production of white blood cells?

  1. Insulin

  2. Glucagon

  3. Epinephrine

  4. Interleukin-2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Interleukin-2 is a hormone produced by activated T cells that stimulates the production of white blood cells, including T cells, B cells, and natural killer cells.

Multiple choice

Which hormone is responsible for regulating the production of antibodies?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Interferon is a hormone produced by infected cells that stimulates the production of antibodies by B cells.