Phenolics
A) denature proteins and destroy cytoplasmic membranes.
B) become ineffective in the presence of detergents or organic material.
C) such as triclosan have very limited commercial use.
D) reliably inactivate all groups of viruses.
E) are ineffective against Mycobacterium species.

Question

Phenolics
A) denature proteins and destroy cytoplasmic membranes.
B) become ineffective in the presence of detergents or organic material.
C) such as triclosan have very limited commercial use.
D) reliably inactivate all groups of viruses.
E) are ineffective against Mycobacterium species.

Quizplus · Accepted Answer

Phenolics are disinfectants that denature proteins and inactivate enzymes, leading to disruption of cell function and destruction of cytoplasmic membranes. They are effective against a wide range of bacteria and some viruses, but can be inactivated by organic material and become less effective over time.

B, C, D, and E are incorrect because phenolics are not necessarily ineffective in the presence of detergents or organic material (although their effectiveness may be reduced), triclosan is a commonly used phenolic in many products, phenolics do not reliably inactivate all groups of viruses, and phenolics have some effectiveness against Mycobacterium species.