Biology

Endocrine and Exocrine Glands

594 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 biology structure and functions of living organisms -ii dental care, eye care and hair care dental care and dental diseases salivary glands

Which of the following statements is TRUE about glandular epithelium is salivary gland?

  1. It consists of isolated single cells

  2. It consists of multicellular cluster of cells

  3. Its secretions are endocrine

  4. It consists of squamous epithelial cells
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Glandular epithelium in salivary glands is organized into multicellular structures known as acini or secretory units. These clusters of cells are specialized for the production and secretion of saliva, rather than existing as isolated cells or simple squamous layers.

Multiple choice zoology diseases and immunity innate and acquired immunity body fluids and immune responses immunity and immune system

Which of the following is not related with thymosins?

  1. In addition to cell mediated immunity thymosins also promote production of antibodies to provide humorala immunity

  2. In old age,thymosins production is more so immunity is strong

  3. Thymosins are produced by thyroid gland

  4. Both B and C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The hormone that is released from the thymus is called thymosin. They are involved in the synthesis of T-cells. Hence, these hormones are involved in cell-mediated immunity. They also modulate the production of antibodies in a person. The thymus reduces in size with age and so does the release of thymosin. Thymosin has also been reported to be released from some other organs.
So, the correct answer is 'B, In old age, thymosins production is more so immunity is strong'.
Multiple choice zoology nervous system of man major divisions of nervous system introduction to control and coordination neurons and synapses

Which of the following gland is present in brain stem?

  1. Hypothalamus

  2. Pituitary gland

  3. Pineal gland

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • The pineal gland is a small endocrine gland in the brain stem. 
  • The pineal gland produces melatonin, a serotonin-derived hormone which modulates sleep patterns in both circadian and seasonal cycles. 
  • The shape of the gland resembles a pine cone from which it derived its name.
Hence, Pineal gland is present in the brain stem.
So, the correct answer is 'Pineal gland'.

Multiple choice bio-chemistry digestive system of human digestive system- glands mouth and buccal cavity digestive glands

A salivary gland is________________

  1. Brunners gland

  2. Sublingual gland

  3. Lacrimal gland

  4. Adrenal gland
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • The sublingual gland is one of the three salivary glands present. They are located beneath the mucous membrane of the floor of the mouth. The other salivary glands are the parotid and the submandibular glands. 
  • Brunner's glands are present in the duodenum of the small intestine and helps in the release of mucous and proteolytic enzymes. Lacrimal glands are exocrine glands that supply tears to the corner of the eye. 
  • Adrenal glands are endocrine glands present above the kidneys that are involved in the production of a large number of different hormones. So, the correct answer is 'sublingual gland'.
Multiple choice bio-chemistry digestive system of human digestive system- glands mouth and buccal cavity digestive glands

Wharton's duct is associated with 

  1. Brunner's gland

  2. Sublingual salivery gland

  3. Submaxillary salivary gland

  4. Parotid salivary gland
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
A. Brunner's glands are found in the duodenum region of small intestine. Their secretions protect the walls of the intestine from the action of gastric juices.
B. Sublingual salivary glands are the smallest glands present beneath the tongue These open at the floor of buccal cavity through ducts of Rivinus.
C. Submaxillary salivary gland are also called submandibular glands. These are medium sized glands and the duct of these glands is called Wharton's duct that opens in the oral cavity near the lower central incisors.
D. Parotid salivary glands are the largest salivary glands of the body. The duct of these glands is called Stenson's duct.
So, the correct answer is 'Submaxillary salivary gland'.
Multiple choice bio-chemistry digestive system of human digestive system- glands mouth and buccal cavity digestive glands

Numbers of pairs of salivary glands present in rabbit are

  1. One

  2. Three

  3. Four

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

The rabbit has four major pairs of salivary glands: the parotid, mandibular, sublingual and zygomatic. Amylase and galactosidase are produced in the saliva, which is produced continuously by the mandibular glands and in response to food intake by the others.

Multiple choice zoology diseases and immunity body defense system drug-target interaction pharmaceutical products and drug action
The gland which regulates the level of calcium in the blood is?

  1. Thyroid

  2. Adrenal

  3. Parathyroid

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

Parathyroid gland regulates calcium levels in the body. It produces a hormone called parathyroid hormone (PTH). PTH raises the blood calcium level by bone desorption leading to calcium release when the blood calcium level is too low. Another way that parathyroid hormone works is by increasing the body's ability to absorb calcium from food and also increasing the kidney's ability to hold on to calcium that would otherwise be lost in the urine. , PTH is released to bring the calcium level back to normal.  so, the correct answer is option C.

Multiple choice zoology diseases and immunity body defense system drug-target interaction pharmaceutical products and drug action
Erythropoietin is secreted from.

  1. Pituitary gland

  2. Pancreas

  3. Adrenal gland

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

Erythropoietin (EPO), is a glycoprotein cytokine secreted by the kidney. It helps in the formation of red blood cells by the bone marrow. The kidney cells that make EPO are specialized and are sensitive to low oxygen levels in the blood coming into the kidney. After being released into the blood stream it binds with receptors in the bone marrow, where it stimulates the production of red blood cells (erythrocytes). Medically, EPO is used to treat certain forms of anemia. So, the correct answer is option D.

Multiple choice zoology study of animal type - cockroach introduction to reproduction reproduction in cockroach reproductive system of cockroach

Stink glands are found in 

  1. Only in males

  2. Only in female

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The intersegmental membrane between the 5th and 6th terga is depressed on either side of the stink gland. These glands are present in both male and female cockroaches and produce a secretion with a characteristic odour. The secretion is a pheromone which helps to attract the opposite sex.
Therefore, the correct answer is option C.

Multiple choice biology food through digestive tract role of large intestine in digestion busy at work - our internal organs parts of the digestive system: structure and function

 The scent gland of mammals are found in the

  1. Bartholin.

  2. Anal.

  3. Prostate.

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

Bartholin glands are present on both sides of vaginal opening in mammals like human females. Secretions of bartholin glands act as lubricant during sexual intercourse. Adrenal glands are important endocrine glands present over kidneys. These glands secrete adrenaline, noradrenaline hormones. Prostate is an accessory gland present in male mammals. In human males a single prostrate gland is present. The urethra runs through the center of the prostate, from the bladder to the penis, letting urine flow out of the body. In some carnivores and herbivores scent glands are present in anus. These glands secrete pheromones which act as signals to mark territory and attract possible mates.