Question

Find out the wrong match.

• A. eosinophils -allergic response
• B. basophils - secrete histamine and serotonin
• C. neutrophils- phagocytic and destroy the foreign organism
• D. Monocytes- secrete heparin

Answer 1

The correct option is D

Monocytes- secrete heparin

The correct option is D:

Explanation of the correct option:

Option D:

1. Monocytes are leucocytes that are motile and phagocytic that engulf bacteria and cellular debris.
2. Histamine, serotonin, and heparin are secreted by the mast cells during inflammation and allergic reactions.
3. Monocytes secrete thrombospondin and not heparin.

Explanation of the incorrect option :

Option A:

Eosinophils :

1. Allergic reactions can be split into two types: early phase reactions and late-phase reactions.
2. In most allergic reactions, the invading cells comprise a significant proportion of lymphocytes, particularly eosinophils.

Option B:

1. Basophils are bone marrow-derived white blood cells that help the immune system to work properly.
2. Basophils store histamine, a vasodilator, as well as the anticoagulant heparin and serotonin, which causes inflammation.

Option C:

1. Neutrophils are specialized white blood cells.
2. They account for the greatest proportion of all types of white blood cells.
3. They are phagocytic and destroy germs and fungi to aid our body's fight against infections and wound healing.

Final answer: Monocytes- secrete heparin is the wrong match.