What is the function of HCl in the stomach? | vedclass

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Question

(A) The stomach secretes gastric juice containing $HCl$ and proenzymes like pepsinogen. $HCl$ serves two primary functions: $1$. It converts the inact

Vedclass · Accepted Answer

To activate pepsin.

Vedclass · Answer

(A) The stomach secretes gastric juice containing $HCl$ and proenzymes like pepsinogen. $HCl$ serves two primary functions: $1$. It converts the inactive proenzyme pepsinogen into the active enzyme pepsin,which is essential for protein digestion. $2$. It creates an acidic medium ($pH$ $1.8$) that kills harmful bacteria and microorganisms present in the ingested food,thereby preventing infections. Since both $A$ and $D$ are functions of $HCl$,in the context of standard biology multiple-choice questions where one must choose the most primary physiological role related to digestion,activating pepsin is often considered the primary function. However,if this is a multiple-choice question where only one answer is expected,both are technically correct. Given the standard curriculum,$A$ is the most direct digestive function.

What is the function of $HCl$ in the stomach?

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