Chemical substances that are found on the cell surface and kill microorganisms or prevent their entry into cells include all of these EXCEPT

Question

Quizplus · Accepted Answer

Complement is a system of proteins that enhances the ability of antibodies and phagocytic cells to clear microbes and damaged cells, but it is not found on the cell surface as a chemical substance that directly kills microorganisms or prevents their entry.

Chemical Substances That Are Found on the Cell Surface and Kill