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 biology coordination and response control of blood glucose endocrine system and hormone hormones in human reproduction

Which of the following hormones fall under the group amino acid derivatives?

  1. Thyroid hormones

  2. Testosterone

  3. Glucagon

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

A.Thyroid hormones derived from the amino acid tyrosine.

B. testosterone is derived from cholesterol 

C.Glucagon is derived from proglucagon

D. Epinephrine,derived from the amino acid tyrosine, 

So, the correct answer is 'Epinephrine' and Thyroid hormone'.

Multiple choice biology coordination and response control of blood glucose endocrine system and hormone hormones in human reproduction

Which of the following is very accurate in case of hormonal control and coordination in human body?

  1. Response is slow and wide spread

  2. Transmission of impulse is very quick

  3. Information passes through blood and lymph

  4. Both A and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hormonal control and coordination are carried out via transmission through blood and lymph as it serves as a media for carrying and circulating hormones. However, the transmission may not be very quick. while the response is slow and widespread.

So, the correct option is 'Both A and C'.

Multiple choice biology control and co-ordination in plants and animals control of blood glucose hormones in human reproduction testes and ovary

Which hormonal secretion in the body leads to the development mustache and beard in males during  puberty? 

  1. Progesteron

  2. Estrogen

  3. Insulin

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

Testosterone is the primary male sex hormone and an anabolic steroid. In male humans, during puberty, the growth of mustache and beard is seen as a sign of growth.

Multiple choice biology control and co-ordination in plants and animals control of blood glucose hormones in human reproduction testes and ovary

Growth Hormone is secreted by

  1. Pineal Body

  2. Pituitary Gland

  3. Pancreas

  4. Parathyroid Gland
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Growth hormone (GH), also called somatotropin or human growth hormone, peptide hormone secreted by the anterior lobe of the pituitary gland. It stimulates the growth of essentially all tissues of the body, including bone.

Multiple choice biology digestion and absorption liver functions of the liver secretory organs

Where are hormones destroyed in the human body?

  1. Liver

  2. Kidney

  3. Stomach

  4. Small intestine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Hormones are secreted by the endocrine glands which are specific in nature.
  • Each hormone causes a response in a target organ or tissues.
  • Once the function of the hormones is completed on their target organs or tissues they are destroyed. 
  • They are destroyed by the liver or the tissues of the target organs. 
  • The destroyed hormone is removed by the kidney. 
  • So, the correct answer is 'Liver'.
Multiple choice biology digestion and absorption liver functions of the liver secretory organs

Organs functioning as modulator and effector for homeostatic control of blood sugar are respectively

  1. Liver and islets of Langerhans

  2. Islets of Langerhans and hypothalamus

  3. Hypothalamus and islets of Langerhans

  4. Hypothalamus and liver.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The liver acts as a modulator by storing or releasing glucose (glycogenolysis/glycogenesis), while the islets of Langerhans (pancreas) act as effectors by secreting insulin and glucagon to control blood sugar levels.

Multiple choice biology digestion and absorption liver functions of the liver secretory organs

Angiotensinogen is a protein produced by

  1. Macula densa cells

  2. Liver cells

  3. Juxtaglomerular cells

  4. Endothelial cells
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Angiotensinogen is a plasma protein produced and secreted by liver cells. It is a sole precursor of all angiotensin peptide. Juxtaglomerular cells secrete renin which acts on angiotensinogen to release angiotensin I and then it is converted to angiotensin II by the action of enzyme angiotensin-converting enzymes.
So, the correct answer is 'Liver cells'.
Multiple choice

Which cells will hormones affect?

  1. Those with the correct receptors.

  2. All cells are affected by every hormone.

  3. The cells the hormones are directed to.

  4. Hormones don't affect cells.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hormones are chemical messengers that only affect target cells. Target cells possess specific receptors that bind to the hormone, allowing it to trigger a response.

Multiple choice

Which essential hormone does the pancreas produce?

  1. adrenaline

  2. insulin

  3. estrogen

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

The pancreas produces insulin, an essential hormone that regulates blood glucose levels. Adrenaline is produced by the adrenal glands, while estrogen and testosterone are primary sex hormones produced by the gonads.

Multiple choice

The harmone endorphines are produced by?

  1. Anterior pituitary gland

  2. uterus

  3. Posterior pituitary gland

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

Endorphins, which act as natural pain relievers and mood enhancers, are synthesized and secreted primarily by the anterior pituitary gland and the hypothalamus.