Which is NOT a reason why microorganisms may have an inherent natural resistance to an antibiotic?
A) The organism may be able to alter the antibiotic to an inactive form.
B) The organism may be impermeable to the antibiotic.
C) The organism may be protected from the drug by its nuclear membrane.
D) The organism may be able to pump out an antibiotic entering the cell.

Question

Quizplus · Accepted Answer

Microorganisms do not have a nuclear membrane, as they are generally prokaryotic and do not have a well-defined nucleus with a nuclear envelope like eukaryotes. Therefore, protection by a nuclear membrane is not a possible reason for inherent natural resistance to an antibiotic.

Which Is NOT a Reason Why Microorganisms May Have an Inherent