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Assertion : RBCs are devoid of nucles in...

Assertion : RBCs are devoid of nucles in most of the mammals
Reason : Entire cytoplasm of RBCs is filled protein called haemoglobin.

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 analyze the assertion and reason provided in the question, we will break down the statements step by step. ### Step 1: Understanding the Assertion - **Assertion**: "RBCs are devoid of nucleus in most of the mammals." - In most mammals, red blood cells (RBCs) do not have a nucleus. This is an important adaptation that allows them to carry more hemoglobin, which is essential for oxygen transport. ### Step 2: Understanding the Reason - **Reason**: "Entire cytoplasm of RBCs is filled with a protein called hemoglobin." - Hemoglobin is the protein responsible for oxygen transport in the blood. The cytoplasm of RBCs is primarily composed of hemoglobin, which enables them to carry a significant amount of oxygen. ### Step 3: Connecting Assertion and Reason - The assertion states a fact about the structure of RBCs, while the reason explains why this structure is beneficial. The lack of a nucleus allows for more space in the cell for hemoglobin, which in turn enhances the cell's ability to transport oxygen. ### Step 4: Evaluating the Truth of the Statements - Both the assertion and the reason are true statements. The assertion accurately describes the structure of RBCs in mammals, and the reason correctly explains the functional advantage of this structure. ### Step 5: Conclusion - Since both the assertion and reason are true and the reason provides a correct explanation for the assertion, the answer to the question is that both statements are true, and the reason correctly explains the assertion. ### Final Answer - The correct option is: **Both assertion and reason are true, and the reason is the correct explanation of the assertion.** ---
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