Tag: pancreas

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Multiple choice biology digestive system of human digestive glands liver pancreas

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.

  1. Only A

  2. Only B

  3. Both A and C

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

Multiple choice biology digestive system of human digestive glands liver pancreas

In which of the form is glucose stored in liver 

  1. Cellulose

  2. Glycogen

  3. Starch

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

Multiple choice biology digestive system of human digestive glands liver pancreas

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

  1. Liver

  2. Gall bladder

  3. Salivary gland

  4. Pancreatic acini
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.
Multiple choice biology digestive system of human digestive glands liver pancreas

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

  1. Metabolism of carbohydrate

  2. Digestion of fat

  3. Formation of bile

  4. Secretion of hormone called gastrin
Reveal answer Fill a bubble to check yourself
D Correct answer
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'