Human Health And Disease Question 76
Question: Which of the following statements is/are correct?
(i) Antigen is usually a foreign body which causes the formation of antibody. (ii) Antibody is a protein molecule. (iii) Antigen can be either protein o polysaccharide molecule. (iv) Antibody joins an antigen to destroy the latter.
Options:
A) (i) and (ii)
B) (i) and (iii)
C) All are incorrect
D) All are correct
Show Answer
Answer:
Correct Answer: D
Solution:
Antibody, a protective protein (and sometimes with polysaccharide) produced by the immune system in response to the presence of a foreign substance, called an antigen. The antibodies destroy the antigen which is then engulfed and digested by macrophages.