Multiple choice

A low molecular weight protein, produced by host cells in response to virus infection that protects other cells against further viral infections is known as

  1. hormone

  2. antigen

  3. interferon

  4. phytotoxin

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Interferons are indeed low molecular weight proteins produced by host cells in response to viral infection. They protect other cells by inducing an antiviral state, inhibiting viral replication, and activating immune cells. This is a key component of the innate immune system's defense against viruses. Hormones regulate physiological processes, antigens trigger immune responses, and phytotoxins are plant toxins.