Multiple choice

What does diphtheria toxin do to the human body?

  1. Causes them to stop functioning

  2. Attaches to the cell’s receptors

  3. Causes problems with breathing, heart rate, or kidney function

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Diphtheria toxin is an exotoxin that binds to cell receptors, enters the cell, and inhibits protein synthesis, causing cells to stop functioning. This leads to systemic complications affecting breathing, heart rate, and kidney function.

Keep practicing — related questions