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Absorption of B(12) requires glycoprotei...

Absorption of `B_(12)` requires glycoprotein P secreted by Q.P and Q are

A

P-extrinsic factor,Q-Stomach

B

P-intrinsic factor,Q-stomach

C

P-intrinsic factor,Q-small intestine

D

P-exopolysaccharide,Q-small intestine

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the absorption of Vitamin B12, we need to identify the glycoprotein (P) involved in this process and the organ (Q) from which it is secreted. ### Step-by-Step Solution: 1. **Understanding Vitamin B12 Absorption**: - Vitamin B12 absorption is a crucial process that requires specific components to facilitate it. 2. **Identifying the Glycoprotein (P)**: - The glycoprotein required for the absorption of Vitamin B12 is known as **intrinsic factor**. This glycoprotein is essential for the binding of Vitamin B12 in the gastrointestinal tract, allowing its absorption in the intestines. 3. **Identifying the Source of the Glycoprotein (Q)**: - The intrinsic factor is secreted by the **parietal cells** located in the lining of the **stomach**. Therefore, the organ responsible for secreting this glycoprotein is the stomach. 4. **Final Identification**: - Based on the above information: - P (the glycoprotein) is **intrinsic factor**. - Q (the organ from which it is secreted) is the **stomach**. 5. **Conclusion**: - The correct answer to the question is: - P = intrinsic factor - Q = stomach
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