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Assertion : Caecum is a small blind sac ...

Assertion : Caecum is a small blind sac which hosts some symbiotic microorganisms.
Reason: Escherichia coli in return produces vitamin `b_(12)` vitamin K, thiamine and riboflavin.

A

If both assertion and reason are true and reason is the correct explantion of assertion

B

If both assertion and reason are true but reason is not the correct explnantion 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:
**Step-by-Step Solution:** 1. **Understanding the Assertion**: The assertion states that the caecum is a small blind sac that hosts some symbiotic microorganisms. - The caecum is indeed a part of the digestive system, located at the junction of the small and large intestines. It is described as a "blind sac" because it has an opening on one end but is closed on the other. 2. **Understanding the Reason**: The reason provided states that Escherichia coli (E. coli) in the caecum produces vitamins B12, K, thiamine, and riboflavin. - E. coli is a type of bacteria that resides in the intestines and plays a role in synthesizing certain vitamins that are beneficial for the host. 3. **Evaluating the Relationship**: We need to determine if the reason correctly explains the assertion. - The assertion is true because the caecum does host microorganisms, including E. coli. - The reason is also true because E. coli does produce vitamins that are essential for the human body. 4. **Conclusion**: Since both the assertion and reason are true, and the reason provides a correct explanation for the assertion, we conclude that both statements are correct and the reason is a correct explanation of the assertion. 5. **Final Answer**: The correct option is that both the assertion and reason are true, and the reason is the correct explanation of the assertion. ---
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