The complete question is :
Microbial control methods usually target any of the following microbial structures EXCEPT which one?
A. plasma membrane permeability
B. nucleic acids
C. microbial proteins
D. mitochondria
Answer: Mitochondria
Step-by-step explanation:
The microbial control methods acts on the microbes and kills them. The mechanism of action by which the the microbes are killed.
The chemical substances affects the plasma membrane permeability of the microbes which leads to killing of bacteria.
The nucleic acids and microbial proteins are also altered which ends up in killing the bacteria.
The part of the microbe where the antimicrobial do not work is the mitochondria.