Tag: liver

Questions Related to liver

Choose the correct statement.
A) Lightly-stained clusters of cells in the pancreas, are called pancreatic islets.
B) Pancreas is located in the upper left part of the abdomen.
C) F-cells secrete pancreatic polypeptide.

biology digestive system of human digestive glands liver pancreas

  1. Only A

  2. Only B

  3. Both A and C

  4. All of the above

Show answer
Correct Option: D
Explanation:

The pancreas is one of the most important glands of the digestive system in human. It is located in the abdominal cavity, behind the stomach, which is upper left part of the abdomen. The tissues with an endocrine role can be seen under staining as lightly-stained clusters of cells, called as Pancreatic islets, also called as Islets of Langerhans. Islets of Langerhans contain four different type of cells, that is, alpha cells, beta cells, delta cells, and pp cells also called as F cells. The F cells constitute only 5% of islet cells. It secretes pancreatic polypeptide. 

In which of the form is glucose stored in liver 

biology digestive system of human digestive glands liver pancreas

  1. Cellulose

  2. Glycogen

  3. Starch

  4. Sucrose.

Show answer
Correct Option: B
Explanation:

All animals and humans store some glucose in the cells so that it is available for quick shots of energy. When there is excess of glucose in the body, it is stored in the liver as the large compound called glycogen. when there is demand for glucose then it is break down their stored glycogen into glucose and send it through the blood stream as fuel for other organs.

So, the correct answer is option B.

Secretion of which of the following digestive gland is considered as the complete digestive juice?

biology digestive system of human digestive glands liver pancreas

  1. Liver

  2. Gall bladder

  3. Salivary gland

  4. Pancreatic acini

Show answer
Correct Option: D
Explanation:
Pancreatic juice is considered the complete digestive juice because of the fact that it contains enzymes for the digestion of carbohydrates, fats, and proteins in addition to bicarbonate ions that provide an alkaline medium. Its alkaline nature helps to neutralize the acidic chyme that comes from the stomach. It also has pancreatic amylase that converts complex polysaccharides into disaccharides and the presence of lipase enzymes helps to digest fats. Lastly, it also contains protein-digesting enzymes like trypsin, chymotrypsin, and carboxypeptidase.
So the correct answer is 'Pancreatic acini'.

Liver is the largest gland and is associated with various functions. Choose one which is not correct?

biology digestive system of human digestive glands liver pancreas

  1. Metabolism of carbohydrate

  2. Digestion of fat

  3. Formation of bile

  4. Secretion of hormone called gastrin

Show answer
Correct Option: D
Explanation:

Gastrin hormone is secreted by the G-cells in the mucosal lining of the stomach. Gastrin is responsible for stimulating the secretion of HCl in the stomach.

A. The liver performs the metabolism of carbohydrates by making glycogen from excess glucose and releasing glycogen at the time of glucose deficiency in the body.
B. The liver plays a role in the digestion of fats by releasing bile in the duodenum.
C. Liver forms bile which contains bilirubin, cholesterol, bicarbonate ions, and bile salts that aid in the digestion of fats.
D. Gastrin is secreted by the G-cells in the stomach.
Hence, the correct answer is 'Secretion of hormone called gastrin'

The structural and functional units of liver are called

bio-chemistry digestion liver functions of the liver secretory organs

  1. Glisson's capsule

  2. Hepatic cells

  3. Hepatic cords

  4. Hepatic lobules

Show answer
Correct Option: D
Explanation:
A. Glisson's capsule: It is a layer of dense connective tissue that surrounds the liver. 
B. Hepatic cells are the cells of liver and building blocks of liver.
C. Hepatic cords are the mass of cells (hepatocytes) which are arranged in irregular rows and columns.
D. Hepatic lobules are the minute, thin, profusely branched septa like trabeculae which extend inwards from the Glisson's capsule and divide each liver lobe into polyhedral units. These are the structural and functional units of liver.
So, the correct answer is 'Hepatic lobules'.

Cells of the liver manufacture

bio-chemistry digestion liver functions of the liver secretory organs

  1. Diastase

  2. Amylase

  3. Lipase

  4. Insulin

  5. None of the above

Show answer
Correct Option: E
Explanation:

The liver doesn't secrete any enzyme. The liver only secretes bile that it produced by the byproducts of haemoglobin breakdown. With the presence of bile, lipase, an enzyme will be able to break down the fat into smaller units. 

Kupffer cells of liver are

bio-chemistry digestion liver functions of the liver secretory organs

  1. Loose connective tissue

  2. Phagocytic cell

  3. Mast cell

  4. Fat cell

Show answer
Correct Option: B
Explanation:

Kupffer cells constitute 80-90% of the tissue macrophages present in the body. They are found in the lumen of the liver sinusoids. 

So, the correct answer is 'phagocytic cells '                                    

Kupffer cell of liver are

bio-chemistry digestion liver functions of the liver secretory organs

  1. Loose connective tissue

  2. Phagocytic cell

  3. Mast cell

  4. Fat cell

Show answer
Correct Option: B
Explanation:

Kupffer cells are specialized macrophages located in the liver, lining the walls of sinusoids. Kupffer cells are a part of the mononuclear phagocytic system. The main function of kupffer cells is clearing any bacteria or foreign substances which are harmful to the body. Hence, Kupffer cells of the liver are the phagocytic cell.

So, the correct answer is 'Phagocytic cell'.

Rhabditiform larva of Ascaris undergoes second and third moulting's in?

bio-chemistry digestion liver functions of the liver secretory organs

  1. Liver

  2. Heart

  3. Alveoli of lungs

  4. Small intestine

Show answer
Correct Option: A

Read the following statements regarding liver:-
(A)Hepatic lobules are structural and functional unit of liver.
(B)Liver secreates bile, which contains digestive enzymes
(C) Each hepatic lobule is covered by a thin epithetial tissue, called "Glisson's capsule"
(D) Hepato-pancreatic duct is guarded by sphincter of Boyden.
Correct statements regarding liver is/are:-

bio-chemistry digestion liver functions of the liver secretory organs

  1. One

  2. Two

  3. Three

  4. Four

Show answer
Correct Option: B
Explanation:

A. The functional unit of liver is called hepatic lobules. 

B. Bile is produced by the liver, which helps in the digestion of lipids in the small intestine.
C. The external surface of the liver is covered by the capsule called the Glisson's capsule.
D. The Hepato pancreatic duct is guarded by the Sphincter of Oddi.

Options A and B are correct.