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3 years ago

Hormones or paracrines that inhibit gastric secretion include ________.

Biology

2 answers:

enot [183]3 years ago

7 0

Answer:

This question lacks options, options are:

A) histamine

B) gastrin

C) secretin

D) ACh

The correct answer is C.

Hormones or paracrines that inhibit gastric secretion include <u>secretin </u>.

Explanation:

Hormones pass into the blood that waters the digestive system, go to the heart, circulate through the arteries and return to the digestive system, where they stimulate the production of digestive juices. The hormones that control digestion are gastrin, secretin and cholecystokinin. Secretin is stimulated by intestinal acid at the duodenal level. Its effect inhibits gastric acid secretion, prostaglandin secretion and via somatostatin release. It decreases gastric emptying and stimulates bile and pancreatic bicarbonate secretion.

Alina [70]3 years ago

7 0

Answer:

Answered below

Explanation:

Gastric secretions are triggered when there is food in the stomach or in anticipation of food. The control and regulation of these secretions is important to prevent disease conditions such as peptic ulcerations and reflux diseases which occur as a result of excess acid in the stomach.

The main inhibitor of gastric secretions is the hormone somatostatin. It acts through the SSTR2 receptors to inhibit the secretion of hydrochloric acid, histamine and gastrin.

Other agents that indirectly inhibit gastric secretions through the stimulation of somatostatin include;

Calcitonin, atrial natriuretic peptide, pituitary adenylate cyclase-activating polypeptide, amylin, and adrenomedullin.

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Options are not provided in the question. The complete question is as following:

A researcher has performed a BLASTp search for a protein of interest. He identifies a globular protein that shares 30 percent of its amino acid sequence and positioning with his target protein. What can he conclude about the shape of his protein of interest?

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b) It is a fibrous protein.

c) It has only a primary structure.

d) It demonstrates only pleated sheets as part of its structure.

e) The researcher can conclude nothing about his protein of interest.

Answer:

a) It is also a globular protein.

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An organism adapting to its environment leads it to be more ‘equipped’ for survival.
Competition is when other species fight for the same resources that another species needs. Also, it would produce offspring with these adaptations.

An example (to help you better understand);

A blue jay has great eyesight, strong wings, and sharp beak. (Better adapted organism) Another blue jay has great eyesight, weak wings, and dull beak. (The competitor/unadapted)

Both birds find the same food source and are now competing for it. The first bird has sharp beams, which is better for breaking, and ‘chomping’ the seeds/food. The second bird would struggle to consume its food (seed) unless it’s worms.

So which one is better adapted? The first blue jay.

And i hope this helped show how competition can be reduced.

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