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 hormone is responsible for regulating the production of cortisol?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Adrenocorticotropic hormone is a hormone produced by the pituitary gland that stimulates the production of cortisol by the adrenal glands.

Multiple choice

Which hormone is responsible for regulating the production of thyroid hormones?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Thyrotropin-releasing hormone is a hormone produced by the hypothalamus that stimulates the production of thyroid hormones by the thyroid gland.

Multiple choice

Which hormone is responsible for regulating the production of growth hormone?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Growth hormone-releasing hormone is a hormone produced by the hypothalamus that stimulates the production of growth hormone by the pituitary gland.

Multiple choice

What is the name of the hormone that is produced by the corpus luteum and helps to maintain the pregnancy?

  1. Progesterone

  2. Estrogen

  3. Testosterone

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

Progesterone is the hormone that is produced by the corpus luteum and helps to maintain the pregnancy.

Multiple choice

Which of the following is NOT a type of cell signaling molecule?

  1. Hormones

  2. Neurotransmitters

  3. Cytokines

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

Growth factors are not a type of cell signaling molecule, but rather a type of protein that stimulates cell growth and division.

Multiple choice

Which of the following is NOT a type of cell receptor?

  1. G protein-coupled receptors

  2. Ligand-gated ion channels

  3. Tyrosine kinase receptors

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

Steroid hormone receptors are not a type of cell receptor, but rather a type of nuclear receptor.

Multiple choice

Which hormone is responsible for stimulating lipolysis?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Epinephrine is a hormone that is released in response to stress or exercise. It stimulates lipolysis, causing the release of fatty acids from adipose tissue into the bloodstream.

Multiple choice

Which of the following is NOT a type of developmental signaling molecule?

  1. Growth factors

  2. Morphogens

  3. Cytokines

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

Hormones are not a type of developmental signaling molecule. The three types of developmental signaling molecules are growth factors, morphogens, and cytokines.

Multiple choice

What are the main hormones that are affected by menopause?

  1. Estrogen and progesterone

  2. Testosterone and cortisol

  3. Insulin and glucagon

  4. Thyroid hormone and parathyroid hormone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Estrogen and progesterone are the main hormones that are affected by menopause. These hormones are produced by the ovaries and are responsible for regulating the menstrual cycle and fertility.

Multiple choice

Which of the following is NOT a type of cell signaling pathway?

  1. Autocrine signaling

  2. Paracrine signaling

  3. Juxtacrine signaling

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

Endocrine signaling is a type of hormonal signaling where hormones are released into the bloodstream and travel to distant target cells. The other options represent direct or local cell-to-cell signaling mechanisms.

Multiple choice

Which of the following is an example of a G protein-coupled receptor (GPCR)?

  1. Insulin receptor

  2. Adrenergic receptor

  3. Tyrosine kinase receptor

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

Adrenergic receptors are a class of GPCRs that bind to epinephrine and norepinephrine, hormones released during the body's response to stress.

Multiple choice

Which signaling molecule is involved in regulating cell differentiation and morphogenesis by controlling cell cycle progression?

  1. Insulin

  2. Epinephrine

  3. TGF-beta

  4. Cyclin-Dependent Kinases
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cyclin-Dependent Kinases (CDKs) are signaling molecules that regulate cell cycle progression and play a role in controlling cell differentiation and morphogenesis.

Multiple choice

Which hormone is primarily responsible for initiating and maintaining pregnancy?

  1. Progesterone

  2. Estrogen

  3. Human Chorionic Gonadotropin (hCG)

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

Progesterone is the dominant hormone during pregnancy, playing a crucial role in maintaining the uterine lining and preparing the body for the developing fetus.

Multiple choice

Which hormone is primarily responsible for triggering the onset of labor and childbirth?

  1. Progesterone

  2. Estrogen

  3. Oxytocin

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

Oxytocin is the hormone responsible for stimulating uterine contractions during labor and childbirth.

Multiple choice

What hormone stimulates glycogenolysis?

  1. Insulin

  2. Glucagon

  3. Epinephrine

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

Glucagon is the hormone that stimulates glycogenolysis, primarily in the liver.