________ is an enzyme that can kill bacteria that enter the respiratory tract.

Question

Quizplus · Accepted Answer

Lysozyme is an enzyme that is present in mucus and tears, and it can break down bacterial cell walls to kill them. Mucus itself helps trap bacteria and prevent them from entering the respiratory tract, but it doesn't have the same bacterial-killing properties as lysozyme. Surfactant is a substance in the lungs that helps reduce surface tension, but it doesn't have direct bactericidal effects. Acid in the stomach can kill bacteria, but it's not typically found in the respiratory tract.

________ Is an Enzyme That Can Kill Bacteria That Enter