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

What is the name of the process by which hormones are broken down?

  1. Catabolism

  2. Anabolism

  3. Metabolism

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

Catabolism is the process by which complex molecules are broken down into simpler molecules.

Multiple choice

Which of the following hormones is synthesized in the adrenal glands?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Epinephrine is synthesized in the adrenal glands from the amino acid tyrosine.

Multiple choice

What is the name of the process by which hormones are synthesized?

  1. Catabolism

  2. Anabolism

  3. Metabolism

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

Anabolism is the process by which simple molecules are built up into more complex molecules.

Multiple choice

Which of the following hormones is synthesized in the pancreas?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Insulin is synthesized in the pancreas from the amino acid proinsulin.

Multiple choice

What is the name of the hormone that regulates blood sugar levels?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Insulin is the hormone that regulates blood sugar levels.

Multiple choice

Which of the following hormones is synthesized in the thyroid gland?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Thyroxine is synthesized in the thyroid gland from the amino acid tyrosine.

Multiple choice

What is the name of the hormone that regulates metabolism?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Thyroxine is the hormone that regulates metabolism.

Multiple choice

Which of the following hormones is synthesized in the pituitary gland?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Epinephrine is synthesized in the pituitary gland from the amino acid tyrosine.

Multiple choice

What is the name of the hormone that regulates growth and development?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Epinephrine is the hormone that regulates growth and development.

Multiple choice

Which of the following hormones is synthesized in the ovaries?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Estrogen is synthesized in the ovaries from the steroid hormone cholesterol.

Multiple choice

What is the name of the hormone that regulates the menstrual cycle?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Estrogen is the hormone that regulates the menstrual cycle.

Multiple choice

Which of the following hormones is synthesized in the testes?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Testosterone is synthesized in the testes from the steroid hormone cholesterol.

Multiple choice

What is the name of the hormone that regulates male sex characteristics?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Testosterone is the hormone that regulates male sex characteristics.

Multiple choice

Which of the following hormones is synthesized in the placenta?

  1. Epinephrine

  2. Insulin

  3. Glucagon

  4. Human chorionic gonadotropin (hCG)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Human chorionic gonadotropin (hCG) is synthesized in the placenta from the glycoprotein hormone chorionic gonadotropin (CG).

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
C Correct answer
Explanation

Cytokines are a type of protein, not a cell signaling molecule.