Biology

Endocrine and Exocrine Glands

690 Questions

The endocrine and exocrine glands topic explores the human body's essential secreting structures, including the pituitary, thyroid, and salivary glands. Questions often focus on gland locations, their specific secretions, and crucial physiological functions. This subject is a core component of the general science syllabus across many highly competitive examinations.

Master endocrine glandsPituitary gland locationSalivary gland functionsThyroid and ductless glandsApocrine sweat glands

Endocrine and Exocrine Glands Questions

Multiple choice general knowledge
  1. True

  2. False

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This statement is false because adrenal glands produce hormones like cortisol and adrenaline, not oil. It's the sebaceous glands that produce sebum (oil), which combines with dead skin cells to form plugs in pores. When bacteria (Cutibacterium acnes) gets trapped, it causes inflammation and pimples.

Multiple choice general knowledge
  1. Kidney

  2. Heart

  3. Liver

  4. Lungs

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The liver is the largest internal gland in the human body, weighing approximately 1.5 kg in adults. It performs over 500 vital functions including detoxification, protein synthesis, and bile production. While other organs like the brain and skin are larger overall, the liver is the largest glandular organ and internal organ.

Multiple choice general knowledge
  1. True

  2. False

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Endocrinology is the branch of medicine and biology dealing with the endocrine system, its diseases, and its specific secretions known as hormones. The study of glands is indeed endocrinology as glands are the primary organs of the endocrine system.

Multiple choice general knowledge science & technology
  1. Liver

  2. Thyroid

  3. Pituitary

  4. Salivary Glands

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pituitary gland, often called the 'master gland,' is the smallest gland in the human body - approximately the size of a pea (about 0.5 grams) and located at the base of the brain. Despite its small size, it produces and regulates numerous hormones that control other endocrine glands and bodily functions. The liver is much larger, the thyroid is also small but larger than the pituitary, and salivary glands are visibly larger.

Multiple choice general knowledge
  1. Lachrymal

  2. Pituitary

  3. Thyroid

  4. Pancreas

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The lacrimal glands (also called lachrymal glands) are the specialized glands that produce tears. They are located above each eye and secrete the watery layer of tears that keeps eyes moist and contains enzymes to protect against infection. Other listed glands have different functions.

Multiple choice general knowledge
  1. Lachrymal

  2. Pituitary

  3. Thyroid

  4. Pancreas

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The lacrimal glands (also called lachrymal glands) are the specialized glands that produce tears. They are located above each eye and secrete the watery layer of tears that keeps eyes moist and contains enzymes to protect against infection. Other listed glands have different functions.

Multiple choice general knowledge
  1. Pancreas

  2. Thyroid

  3. Pituitary

  4. Spleen

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pituitary gland is called the master gland because it controls other endocrine glands through hormone secretion. It produces hormones that regulate growth, metabolism, reproduction, and stress response. The hypothalamus influences the pituitary, but the pituitary directly regulates other glands like thyroid, adrenals, and gonads.

Multiple choice general knowledge
  1. Pancreas

  2. Thyroid

  3. Pituitary

  4. Spleen

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pituitary gland is called the master gland because it controls other endocrine glands through hormone secretion. It produces hormones that regulate growth, metabolism, reproduction, and stress response. The hypothalamus influences the pituitary, but the pituitary directly regulates other glands like thyroid, adrenals, and gonads.

Multiple choice general knowledge science & technology
  1. Pancreas

  2. Thyroid

  3. Pituitary

  4. Spleen

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pituitary gland is called the 'master gland' because it secretes hormones that regulate other endocrine glands, including the thyroid, adrenals, and reproductive glands. The pancreas produces insulin and digestive enzymes, the thyroid regulates metabolism, and the spleen is part of the immune system.

Multiple choice general knowledge science & technology
  1. Lachrymal

  2. Pituitary

  3. Thyroid

  4. Pancreas

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lachrymal glands, also called lacrimal glands, are located above each eye and secrete tears to lubricate and protect the eyes. The pituitary is the master gland regulating hormones, thyroid regulates metabolism, and pancreas produces digestive enzymes and insulin - none produce tears.