Question

It is necessary for the immune system to clearly distinguish foreign cells and proteins from those made by the body.

(a) Explain why this is the case:
(b)Name the type of disorder that results when this recognition system fails:

Answer 1

a) It's necessary to distinguish foreign cells and proteins because they could possibly be viruses since viruses have the function of a cell and coat of a protein.

b) Sickness could occur if the recognition system fails