Tag: control and coordination in living organisms

Questions Related to control and coordination in living organisms

Hormone involved in the discharge of pancreatic juice in mammals is

zoology control and coordination in living organisms gastrointestinal tract and liver hormones of heart, kidney, liver and gastrointestinal tract coordination in human beings- chemical control

  1. Secretin

  2. Gastrin

  3. Cholecystokinin

  4. Enterogastrone

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Correct Option: A
Explanation:

Secretin is produced in the S cells of the duodenum, which are located in the crypts of Lieberkuhn. Secretin helps regulate the pH of the duodenum by inhibiting the secretion of gastric acid from the parietal cells of the stomach and stimulating the production of bicarbonate from the pancreas. 

Secretin stimulates the activity of

zoology control and coordination in living organisms gastrointestinal tract and liver hormones of heart, kidney, liver and gastrointestinal tract coordination in human beings- chemical control

  1. Liver

  2. Parietal cells

  3. Pancreas

  4. All of the above

Show answer
Correct Option: D
Explanation:

Secretin helps in regulating the $pH$ of the duodenum by

(1) Its inhibit the secretion of gastric acid from the parietal cells of the stomach.
(2) Stimulating the production of bicarbonate from ductal cells of the pancreas.
Secretin also stimulates duct cells in the liver for the release of bicarbonate into the bile.