Question

Which one of the following statements are wrong?
(a) Leucocytes disintegrate in spleen and liver.
(b) RBC, WBC, and blood platelets are produced by bone marrow.
(c) Neutrophils bring about destruction and detoxification of toxins of protein origin.
(d) Important function of lymphocytes is to produce antibodies.

• A. b and c only
• B. a and b only
• C. a and d only
• D. a and c only

Answer 1

The correct option is D a and c only

Incorrect statements

Statement a
Leucocytes disintegrate in spleen and liver.

Elaboration
Leucocytes emerge from the bone marrow. They have a lifespan of about 13-20 days. They help to fight off infections and pathogens. They might get destroyed in the process and get disintegrated in the lymphatic system.

Incorrect statements

Statement c
Neutrophils bring about destruction and detoxification of toxins of protein origin.

Elaboration
Neutrophils are phagocytic cells. They engulf the pathogens and foreign substances. They don’t have any role in destruction or detoxification of toxins of protein origin.

Final answer: (C) a and c only