Question

Which of the following statements about quaternary ammonium compounds is FALSE? 66) ______

A) They function by cross-linking proteins.
B) Zephiran is an example of a quat.
C) They are a type of detergent.
D) They are not effective against Pseudomonas aeruginosa.
E) They are harmless to humans except at high concentrations.

Answer 1

Quaternary ammonium compounds (quats) do not function by cross-linking proteins. They actually disrupt the phospholipid plasma membranes of bacterial cells and lead to cell death.

Step-by-step explanation:

The FALSE statement about quaternary ammonium compounds is A) They function by cross-linking proteins. Quaternary ammonium compounds, or quats, actually disrupt the phospholipid plasma membranes of bacterial cells and lead to cell death. They have properties similar to phospholipids and can insert into the bacterial phospholipid bilayer, disrupting membrane integrity and causing damage.