Hydrochloric acid facilitates the action of which of the following enzyme?

Salivary amylase

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Pepsin

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Trypsin

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Lipase

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Solution

The correct option is B Pepsin
The stomach does digestion by churning the bolus into a creamy chyme. Several enzymes are secreted in the stomach including gastric lipase, gastric amylase, gelatinase and pepsinogen. Pepsinogen is the inactive form of the proteolytic enzyme pepsin which is activated via acid hydrolysis with the hydrochloric acid secreted by the stomach.

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Question 08.
Which of the following gives the correct increasing order of acid strength?
(a) Water < Acetic Acid< Hydrochloric Acid
(b) Water < Hydrochloric Acid < Acetic Acid
(c) Acetic Acid < Water < Hydrochloric Acid
(d) Hydrochloric Acid < Water < Acetic Acid

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