Tag: digestion

Questions Related to digestion

The gastrointestinal hormone, which stimulates insulin secretion is 

bio-chemistry digestion absorption of food absorption parts of the digestive system: structure and function

  1. Gastrin

  2. CCK

  3. Secretin

  4. GIP

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Correct Option: D
Explanation:

Gastric inhibitory polypeptide (GIP), also known as the glucose-dependent insulinotropic peptide. The function of GIP is to induce insulin secretion, which is stimulated primarily by hyper osmolarity of glucose in the duodenum.

Secretion of gastric juice is controlled by

bio-chemistry digestion absorption of food absorption parts of the digestive system: structure and function

  1. Gastrin

  2. Cholecystokinin

  3. Enterogastrone

  4. None of the above

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Correct Option: A
Explanation:

As food enters the confined space of the stomach, it starts applying pressure to the stomach wall distending it a bit. This distention causes the stomach to release gastrin, which stimulates the gastric glands to secrete more gastric juice.

Gastric juice is secreted under the influence of hormone

bio-chemistry digestion absorption of food absorption parts of the digestive system: structure and function

  1. Renin

  2. Enterogastrone

  3. Enterocrinin

  4. Gastrin

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Correct Option: D

Entry of food in stomach mechanically stimulates it to produce a hormone named

bio-chemistry digestion absorption of food absorption parts of the digestive system: structure and function

  1. Progesterone

  2. Secretin

  3. Gastrin

  4. Pancreozymin

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Correct Option: C

Which one is a gastrointestinal hormone

bio-chemistry digestion absorption of food absorption parts of the digestive system: structure and function

  1. Prolactin

  2. GH

  3. Enterokinase

  4. FSH

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Correct Option: C

Gastrin is

bio-chemistry digestion absorption of food absorption parts of the digestive system: structure and function

  1. Hormone

  2. Enzyme

  3. Nutrient

  4. Digestive secretion

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Correct Option: A

Secretin is gastrointestinal tract hormone that

bio-chemistry digestion absorption of food absorption parts of the digestive system: structure and function

  1. Acts on exocrine part of pancreas and stimulates the secretion of water and bicarbonate ions

  2. Acts on exocrine portion of pancreas and stimulates the cells to secrete glucagon

  3. Acts on gastric glands and stimulates secretion of HCl and Pepsinogen

  4. Stimulates secretion of gastric lipase from stomach

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Correct Option: A

Choose the odd one w.r.t. locations of source cells for hormone.

bio-chemistry digestion absorption of food absorption parts of the digestive system: structure and function

  1. Gastrin

  2. Enterogastrone

  3. Secretin

  4. Duocrinin

Show answer
Correct Option: A
Explanation:

The gastrin hormone is secreted by the pyloric stomach located adjacent to the duodenum. This hormone stimulates the gastric glands to release gastric juice and regulates the movement of the stomach. 

Secretin is produced by the small intestinal mucosa region. It may inhibit the gastrin secretion and stomach movement. Both enterogastrone and duocrinin hormones are released from duodenal mucosa. Enterogastrone regulates gastric contraction and inhibits production of gastric juice. Duocrinin stimulates the viscous mucosa secretion from Brunner's gland into the intestinal juice. 
So, the correct answer is option A, Gastrin. 

The hormone responsible for vagus nerve activity is

bio-chemistry digestion absorption of food absorption parts of the digestive system: structure and function

  1. CCK

  2. Secretin

  3. Gastrin

  4. GIP

Show answer
Correct Option: C

Which one of the following does not match is biological category of chemical substance.

bio-chemistry digestion absorption of food absorption parts of the digestive system: structure and function

  1. Gastrin

  2. Creatinine

  3. Oxytocin

  4. Renin

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Correct Option: A