General science UPPSC 2001 GS-I
Question

Consider the following statements about haemoglobin:

1. It contains iron
2. It is a carrier of oxygen in the blood.
3. It imparts red colour to the blood.
4. It provides immunity against certain diseases.

Of these statements:

Answer & Solution

Answer: (Detailed Solution Below)

Option B: 1, 2 and 3 are correct

Detailed Solution:

The correct answer is “1, 2 and 3 are correct ”.

1) Hemoglobin is a protein that contains iron at its core.

2) Hemoglobin's primary function is to transport oxygen throughout the body. It binds to oxygen in the lungs and releases it in tissues that require it.

3) The iron in hemoglobin gives blood its characteristic red color.

4) Hemoglobin itself is not directly involved in the immune system's response to diseases.

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