Tag: liver

Questions Related to liver

Which is the largest gland in human body?

biology digestive system of human digestive glands liver pancreas

  1. Pancreas

  2. Liver

  3. Thyroid

  4. Pituitary

Show answer
Correct Option: B
Explanation:
Liver is the largest gland in the human body that secretes bile
So, the correct answer is 'Liver'

Which of the following organs is responsible for storing excess bile produced by the liver?

biology digestive system of human digestive glands liver pancreas

  1. Gall bladder

  2. Pancreas

  3. Duodenum

  4. Spleen

Show answer
Correct Option: A
Explanation:

The liver produces bile, which is stored in the gall bladder before entering the bile duct into the duodenum

So, the correct answer is 'Gall bladder'

The chief function of bile juice is to:

biology digestive system of human digestive glands liver pancreas

  1. emulsify fats for digestion

  2. emulsify proteins for digestion

  3. regulate digestion of proteins

  4. digest fats by enzymes

Show answer
Correct Option: A
Explanation:
The main function of bile juice is the absorption of fats, fat-soluble substances such as vitamin A, D, E, & K.
So, the correct option is 'Emulsify fats for digestion'.

Which of the following digestive glands secretes a digestive juice which does not contain enzymes?

biology digestive system of human digestive glands liver pancreas

  1. Salivary

  2. Liver

  3. Pancreas

  4. None of these

Show answer
Correct Option: B
Explanation:

  • The liver performs a variety of functions such as synthesis, storage and secretion of various substances. The liver secretes bile juice.
  • The bile secreted by the hepatic cells is released into the duodenum contains bile pigments, bilirubin and biliverdin formed by the breakdown of haemoglobin of the old RBC destroyed in the body., bile salts such as glycocholates and taurocholate of sodium and potassium, cholesterol and phospholipids but no enzymes. 
  • The bile secreted is a yellowish-green fluid that helps in the emulsification of fats. Bile is not an enzyme, but it does contain bile salts that emulsify large fat droplets. Hence, the liver is the digestive glands secretes a digestive juice which does not contain enzymes.
So, the correct answer is 'liver'.

Which of the following is not a function of bile?

biology digestive system of human digestive glands liver pancreas

  1. Bile neutralises the acidic traces of food

  2. It provides an alkaline medium for the intestinal proteases

  3. It contains a lipase

  4. Its salts emulsify fats

Show answer
Correct Option: C
Explanation:

  1. Bile is a dark green to yellowish brown fluid, produced by the liver of most vertebrates, bile helps in the digestion of lipids in the small intestine. In humans, bile is produced continuously by the liver and stored and concentrated in the gallbladder.
  2. The composition of hepatic bile is water, bile salts, bilirubin, fats (cholesterol, fatty acids, and lecithin), and inorganic salts.
  3.  Lipase is an enzyme secreted by pancreas and lipase is present in pancreatic juice. Lipase helps your body digest fats. Hence, the bile does not contain lipase.
So, the correct answer is 'it contains a lipase'.

Read the following statements and select the correct option.
Statement 1 : The second largest digestive gland in out body is pancreas.
Statement 2 : Pancreas functions both as an exocrine and endocrine gland.

biology digestive system of human digestive glands liver pancreas

  1. Both statements 1 and 2 are correct.

  2. Statement 1 is correct but statement 2 is incorrect.

  3. Statement 1 is incorrect but statement 2 is correct.

  4. Both statements 1 and 2 are incorrect.

Show answer
Correct Option: A
Explanation:

The correct answer is (a).

Which of the following option is correct for correctly matched pairs for Column I and Column II.

Column I Column II
(i)   $\rho$ - cells (a) It stimulates glycogenolysis
(ii)  $\beta$ - cells (b) It secrete somatostatin
(iii) a - cells (c) Increases cellular glucose uptake and utilisation
(d) Rise in blood pressure and blood volume


biology digestive system of human digestive glands liver pancreas

  1. i - c, ii - d, iii - a

  2. i - d, ii - c, iii - b

  3. i - b, ii - c, iii - a

  4. i - b, ii - d, iii - a

Show answer
Correct Option: C
Explanation:

The pancreas has islet of Langerhans cell that possesses alpha, beta, delta and F cells. Delta cells secrete somatostatin that inhibits the secretion of both insulin and glucagon hormones. Beta cells secrete insulin that helps in the utilization of blood sugar (cellular glucose). Alpha cells secrete glucagon hormone that acts on glycogen during starvation condition and converts them into glucose. the process of breakdown of glycogen is called as glycogenolysis. Thus, the correct answer is 'i - b, ii - c, iii - a'.

Digestive System
Which of the following statement is incorrect about pancreas? 

biology digestive system of human digestive glands liver pancreas

  1. It is a compound gland as it has both exocrine and endocrine part.

  2. Exocrine part secretes alkaline pancreatic juice having enzymes.

  3. Endocrine part secretes hormones like insulin and glucagon.

  4. It is surrounded by Glisson's capsule.

Show answer
Correct Option: D
Explanation:

Each hepatic lobule of the liver is covered by a thin connective tissue sheath called the Glisson's capsule. So, the correct answer is (d).

The pancreas has two types of cells namely islets of Langerhans and acinar cells. In the early years of research on diabetes, the extract of this gland was tested on diabetic patients. Results are tabulated. The correct interpretation is that.

Reduction in blood sugar level
A. Extract of Pancreas
B.  Islet cell Extract
C.  Acinar cell Extract
biology digestive system of human digestive glands liver pancreas

  1. Anti-diabetic factor present in extract 'C' was inactivated by extract 'A'

  2. Anti-diabetic factor present in 'A' was destroyed by 'B'

  3. Both 'A' and 'C' destroyed the anti-diabetic factor present in 'B'

  4. Anti-diabetic factor present in 'B' was destroyed by 'C'

Show answer
Correct Option: D
Explanation:

The result shows that the extract of the pancreas is ineffective to reduce blood sugar level. The extract contains secretions of both exocrine and endocrine parts i.e., acinar cells and islets of Langerhans respectively. Since the extract of the endocrine part which is islet of Langerhans is individually capable of reducing sugar level, this shows that some factors from acinar cells are preventing anti-diabetic factor to function.

So the correct answer is 'Anti-diabetic factor present in 'B' was destroyed by 'C'.

Choose the correct statement.
A) The anterior surface of the pancreas faces the front of the abdomen.
B) Pancreas drain enzymes through the ampulla of Vater into the duodenum.
C) Lighter-staining cells of pancreas form clusters called acini

biology digestive system of human digestive glands liver pancreas

  1. Only A

  2. Only C

  3. Both A and B

  4. All of the above

Show answer
Correct Option: C
Explanation:
  • The pancreas is a compound (both exocrine and endocrine) elongated organ situated between the limbs of the ‘U’ shaped duodenum in the abdomen behind the stomach.
  • The anterior surface of the pancreas faces the front of the abdomen.
  •  Pancreas drain pancreatic enzymes through the ampulla of Vater into the duodenum. The ampulla of Vater is located where the bile duct and pancreatic duct join and empty into the duodenum.
  • Lighter-staining cells of the pancreas which form clusters are called Islets of Langerhans. These cells secrete hormones such as insulin and glucagon.
  • So, the correct answer is 'Both A and B'.