[DIAGRAM: A microscopic image of a human blood cell showing a basophil with dark purple granules obscuring the nucleus.] The figure shows a human blood cell. Identify it and give its characteristics.

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

The NCERT line that answers it

Verbatim line

Basophils secrete histamine, serotonin, heparin, etc., and are involved in inflammatory reactions.

Chapter: Body Fluids and Circulation
Section: 15.1.2 Formed Elements
Page: 1
Words matched: 12 of 12

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The NCERT span explicitly states that basophils secrete serotonin and are involved in inflammatory reactions, which directly matches the characteristics given in option A.

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