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 test is used to assess the adrenal glands' ability to produce epinephrine and norepinephrine?

  1. Clonidine Suppression Test

  2. Thyroid Function Test (TFT)

  3. Adrenocorticotropic Hormone (ACTH) Stimulation Test

  4. Glucose Tolerance Test (GTT)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Clonidine Suppression Test evaluates the adrenal glands' ability to produce epinephrine and norepinephrine in response to clonidine, a medication that lowers blood pressure.

Multiple choice

Which pregnancy-specific hormone is primarily responsible for suppressing the maternal immune response?

  1. Human chorionic gonadotropin (hCG)

  2. Progesterone

  3. Estrogen

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

Progesterone is a key pregnancy-specific hormone that plays a crucial role in suppressing the maternal immune response and promoting immune tolerance.

Multiple choice

Which of the following is a hormone produced by the pancreas?

  1. Thyroxine

  2. Insulin

  3. Epinephrine

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

Insulin is a hormone produced by the pancreas that regulates blood sugar levels.

Multiple choice

Which hormone is responsible for regulating metabolism, growth, and development?

  1. Estrogen

  2. Thyroid hormone

  3. Insulin

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

Thyroid hormone is produced by the thyroid gland and is essential for regulating metabolism, growth, and development.

Multiple choice

Which hormone is responsible for regulating blood sugar levels?

  1. Estrogen

  2. Thyroid hormone

  3. Insulin

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

Insulin is produced by the pancreas and is responsible for regulating blood sugar levels.

Multiple choice

Which hormone is responsible for regulating the menstrual cycle and fertility in women?

  1. Estrogen

  2. Thyroid hormone

  3. Insulin

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

Estrogen is produced by the ovaries and is responsible for regulating the menstrual cycle and fertility in women.

Multiple choice

Which hormone is responsible for regulating the production of cortisol, which helps the body respond to stress?

  1. Estrogen

  2. Thyroid hormone

  3. Insulin

  4. Adrenocorticotropic hormone (ACTH)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Adrenocorticotropic hormone (ACTH) is produced by the pituitary gland and is responsible for regulating the production of cortisol, which helps the body respond to stress.

Multiple choice

Which hormone is responsible for regulating the production of growth hormone, which is essential for growth and development?

  1. Estrogen

  2. Thyroid hormone

  3. Insulin

  4. Growth hormone-releasing hormone (GHRH)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Growth hormone-releasing hormone (GHRH) is produced by the hypothalamus and is responsible for regulating the production of growth hormone, which is essential for growth and development.

Multiple choice

Which hormone is responsible for regulating the production of prolactin, which is essential for milk production in women?

  1. Estrogen

  2. Thyroid hormone

  3. Insulin

  4. Prolactin-releasing hormone (PRH)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Prolactin-releasing hormone (PRH) is produced by the hypothalamus and is responsible for regulating the production of prolactin, which is essential for milk production in women.

Multiple choice

Which hormone is responsible for regulating the production of antidiuretic hormone (ADH), which helps the body regulate water balance?

  1. Estrogen

  2. Thyroid hormone

  3. Insulin

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

Vasopressin is produced by the hypothalamus and is responsible for regulating the production of antidiuretic hormone (ADH), which helps the body regulate water balance.

Multiple choice

Which hormone is responsible for regulating the production of oxytocin, which is involved in social bonding, reproduction, and lactation?

  1. Estrogen

  2. Thyroid hormone

  3. Insulin

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

Oxytocin is produced by the hypothalamus and is responsible for regulating the production of oxytocin, which is involved in social bonding, reproduction, and lactation.

Multiple choice

Which of the following chemicals is a known endocrine disruptor?

  1. Bisphenol A (BPA)

  2. Fluoride

  3. Sodium chloride

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

Bisphenol A (BPA) is a known endocrine disruptor, and exposure to BPA can interfere with the normal functioning of the endocrine system, leading to a range of health problems.

Multiple choice

What is the name of the hormone that is responsible for maintaining the lining of the uterus during pregnancy?

  1. Estrogen

  2. Progesterone

  3. Luteinizing hormone (LH)

  4. Follicle-stimulating hormone (FSH)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Progesterone is the hormone that is responsible for maintaining the lining of the uterus during pregnancy.

Multiple choice

Which toxic chemical is known for its ability to disrupt the endocrine system, leading to developmental and reproductive issues?

  1. Bisphenol A (BPA)

  2. Mercury

  3. Lead

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

Bisphenol A (BPA) is a toxic chemical commonly found in plastics and food packaging, known for its ability to disrupt the endocrine system, leading to developmental and reproductive issues.

Multiple choice

Which of the following hormones is involved in regulating blood glucose levels?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Insulin is involved in regulating blood glucose levels.