Tag: liver

Questions Related to liver

DNA-ase and RNA-ase are enzymes produced by

biology digestive system of human digestive glands liver pancreas

  1. Salivary glands

  2. Pancreas

  3. Stomach

  4. Intestine

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Correct Option: B

Largest gland in human body is

biology digestive system of human digestive glands liver pancreas

  1. Liver

  2. Pancreas

  3. Pituitary

  4. Thyroid

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Correct Option: A

Islets of Langerhans are found in

biology digestive system of human digestive glands liver pancreas

  1. Anterior pituitary

  2. Kidney cortex

  3. Spleen

  4. Endocrine pancreas

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Correct Option: D

Number of liver lobes is

biology digestive system of human digestive glands liver pancreas

  1. 4

  2. 5

  3. 6

  4. 7

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Correct Option: A

Growth hormone is secreted by

biology digestive system of human digestive glands liver pancreas

  1. Acidophilic $\alpha$ - cells

  2. Acidophilic $\beta$ - cells

  3. Basophilic $\alpha$ - cells

  4. Basophilic $\beta$ - cells

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Correct Option: A
Explanation:
Pituitary gland has two parts; adenohypophysis and neurohypophysis. Adenohypophysis has two types of cells, chromophobe cells and chromophil cells. Chromophil cells are divided into acidophilic or alpha cells and basophilic or beta cells depending upon whether they stain with acidic or basic dyes.
Growth hormone (GH) is secreted from acidophilic cells i.e. alpha cells (α) of anterior pituitary. It stimulates body growth and metabolism.
So, the correct answer is 'Acidophilic αα - cells'.

Alloxan treatment destroys 

biology digestive system of human digestive glands liver pancreas

  1. STH cells

  2. Sertoli cells

  3. Leydig's cells

  4. $\beta$- cells of islets of Langerhans

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Correct Option: D
Explanation:
A. STH or somatotropin hormone is known as growth hormone and stimulates body growth and carbohydrate, protein, fat metabolism.
B. Sertoli cells are part of seminiferous tubules and help in spermatogenesis (production of sperms from germ cells) as they provide nourishment to the developing sperms.
C. Leydig cells, also known as interstitial cells are present in the testis near seminiferous tubules. They secrete testosterone hormone which helps in the development of secondary sexual characteristics in males.
D. ββ-cells of islets of Langerhans are part of pancreas and secrete insulin hormone which regulate blood glucose levels.
Alloxan is a toxic analogue of glucose which destroys insulin producing cells of pancreas i.e. ββ-cells of islets of Langerhans.
So, the correct answer is 'ββ-cells of islets of Langerhans'.

Glucagon is produced by 

biology digestive system of human digestive glands liver pancreas

  1. Peptic cells

  2. Oxyntic cells

  3. Alpha cells

  4. Beta cells

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Correct Option: C
Explanation:
A. Peptic cells secrete pepsinogen (inactive form of pepsin enzyme that degrades proteins).
B. Oxyntic cells, also known as parietal cells, secrete HCl (Hydrochloric acid) in the stomach.
C. Alpha cells are part of islets of Langerhans in pancreas and secrete glucagon hormone which increases blood sugar level.
D.  Beta cells are part of islets of Langerhans in pancreas and secrete insulin hormone which decreases blood sugar level.
So, the correct answer is 'Alpha cells'.

The gland which is exocrine and endocrine is 

biology digestive system of human digestive glands liver pancreas

  1. Adrenal

  2. Pituitary

  3. Pancreas

  4. Liver

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Correct Option: C
Explanation:
A. Adrenal gland is present on upper side of kidneys and has two parts, adrenal cortex which secrete glucocorticoids, mineralocorticoids and sexocorticoids and adrenal medulla which secrete adrenaline and nor-adrenaline hormone.
B. Pituitary gland is the master gland that regulates the activity of other endocrine glands and secretes many hormones like growth hormone, follicle stimulating hormone, thyroid stimulating hormone etc.
C. Pancreas is a heterocrine gland as it acts both as endocrine and exocrine gland. It secretes insulin hormone into blood and act as endocrine gland and when it secretes digestive enzymes and juice through pancreatic duct, it acts as exocrine gland.
D. Liver is an organ found in vertebrates which bile juice that helps in the digestion of fats.
So, the correct answer is 'Pancreas'.

Where in the body is the pancreas located?

biology digestive system of human digestive glands liver pancreas

  1. It is located behind the stomach.

  2. It is located behind the liver.

  3. It is located in front of stomach.

  4. It is located in front of liver.

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Correct Option: A
Explanation:

The pancreas is an organ found in the abdomen. It is located behind the stomach. The head of the pancreas is on the right side of the abdomen. It plays important role in converting the food into fuel. It helps in digestion. It also produces hormone insulin which regulates blood sugar.

Thus, the correct answer is 'It is located behind the stomach.'

Exocrine part of pancreas for release of pancreatic salt is stimulated by _____________.

biology digestive system of human digestive glands liver pancreas

  1. Secretin

  2. Gastrin

  3. OCK

  4. Gastric inhibitory peptide

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Correct Option: A