Salivary amylase is also known as

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ptyalin

pepsin

gastrin

glyoxylase

answer is A.

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Detailed Solution

Another name for salivary amylase is ptyalin. This enzyme is secreted by salivary gland.

Ptyalin, is another name for salivary amylase, the enzyme found in saliva that begins the process of breaking down starches into simpler sugars.

Why the Other Options Are Incorrect

B. Gastrin: Gastrin is a hormone, not an enzyme. It is secreted by the stomach lining and stimulates the production of gastric acid for digestion.
C. Glyoxylase: Glyoxylase is an enzyme involved in detoxifying certain byproducts in cells, unrelated to carbohydrate digestion.
D. Pepsin: Pepsin is an enzyme that digests proteins in the stomach, not carbohydrates in the mouth.

Ptyalin (salivary amylase) is the correct answer because it specifically refers to the enzyme in saliva that begins carbohydrate digestion. The other options either refer to unrelated hormones or enzymes with different functions.

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