Choose the correct statement about interferons.
A) Interferons are part of the complement system.
B) Interferons impart resistance to viral infections.
C) Interferons secrete cytokines which trigger apoptosis.
D) Interferons engage in agglutination and are thus similar to antibodies.
E) Interferons interfere with antigen recognition on CD 4 cells.

Question

Quizplus · Accepted Answer

Interferons are signaling proteins released by cells in response to viral infections, among other stimuli. They do not play a role in the complement system, secrete cytokines that trigger apoptosis, engage in agglutination or interfere with antigen recognition on CD4 cells. However, interferons do indeed impart resistance to viral infections by inducing the expression of antiviral proteins in neighboring cells, thus preventing the spread of the infection.

Choose the Correct Statement About Interferons