Interferon
A) directly attacks viruses.
B) protects cells that have been invaded by viruses.
C) increases vascular permeability.
D) is not produced by most cells.
E) is a protein that interferes with virus production and infection.

Question

Quizplus · Accepted Answer

Interferon is a type of protein that is produced by cells in response to viral infections. It does not directly attack viruses or protect cells that have already been invaded. Instead, it helps to interfere with virus production and infection in nearby cells, thus limiting the spread of the virus.