Cross resistance is . a. the deactivation of an...

Cross resistance is _______. a. the deactivation of an antimicrobial agent by a bacterial enzyme b. alteration of the resistant cells so that an antimicrobial agent cannot attach c. the mutation of genes that affect the cytoplasmic membrane channels so that antimicrobial agents cannot cross into the cell's interior d. resistance to one antimicrobial agent because of its similarity to another antimicrobial agent

Cross resistance is _______.
a. the deactivation of an antimicrobial agent by a bacterial
enzyme
b. alteration of the resistant cells so that an antimicrobial agent cannot attach
c. the mutation of genes that affect the cytoplasmic membrane channels so that antimicrobial agents cannot cross into the cell's interior
d. resistance to one antimicrobial agent because of its similarity to another antimicrobial agent

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Key Concepts

Cross Resistance

Cross resistance refers to the phenomenon where resistance to one antimicrobial agent confers resistance to another agent, typically because of similarities in their chemical structure or mechanism of action. This means that even if a bacterium has not been directly exposed to the second agent, it may still be resistant due to shared targets or pathways affected by both agents.

Antimicrobial Resistance

Antimicrobial resistance is the ability of microorganisms such as bacteria, viruses, fungi, and parasites to withstand the effects of an antimicrobial agent, which would normally kill them or inhibit their growth. This resistance can arise through various mechanisms, including mutations, gene transfer, or biochemical alterations, and poses a significant challenge in treating infectious diseases.

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