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Assertion : Gastrin is a hormone that i...

Assertion : Gastrin is a hormone that is released from the gastrointestinal tract and helps in digestion
Reason : It promotes secretion of HCl and trypsinogen

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the assertion and reason about gastrin, we will analyze both statements step by step. ### Step 1: Analyze the Assertion **Assertion:** Gastrin is a hormone that is released from the gastrointestinal tract and helps in digestion. - **Explanation:** Gastrin is indeed a hormone that is secreted by G cells in the pyloric antrum of the stomach. It plays a crucial role in the digestive process by stimulating gastric acid secretion. ### Step 2: Analyze the Reason **Reason:** It promotes secretion of HCl and trypsinogen. - **Explanation:** Gastrin stimulates the parietal cells in the stomach to secrete hydrochloric acid (HCl), which is essential for digestion. However, the statement about trypsinogen is incorrect. Trypsinogen is an inactive enzyme produced by the pancreas, not directly stimulated by gastrin. Gastrin does not promote the secretion of trypsinogen. ### Step 3: Determine the Truth of Each Statement - The assertion is **true** because gastrin is a hormone that aids digestion. - The reason is **false** because while gastrin does promote the secretion of HCl, it does not promote the secretion of trypsinogen. ### Step 4: Conclusion Based on the analysis: - The assertion is true. - The reason is false. Thus, the correct conclusion is that the assertion is true, but the reason is false. ### Final Answer: Assertion is true, Reason is false. ---
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