NEET · Biology · STD 11 - 15. Body fluids and criculations

The figure shows a human blood cell. Identify it and give its characteristics.

A Basophil \(\to\) Secretes serotonin, inflammatory response
B B-lymphocyte \(\to\) Forms about \(20\%\) of blood cells involved in immune response
C Neutrophil\(\to\) Most abundant blood cells, phagocytic
D Monocyte \(\to\) Life span of \(3\) days, produces antibodies

Verified Solution

Answer & Solution

Correct Answer

(A) Basophil \(\to\) Secretes serotonin, inflammatory response

Step-by-step Solution

Detailed explanation

(a) : Basophils have nucleus which is threelobed and have less number of coarse granules. Their granules take basic stain and release heparin, histamine and serotonin.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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