Both aerobic and anaerobic bacteria can cause infections in people, generally in environments that enable the bacteria to thrive. which statement identifies the most likely infections?

The mechanisms of action of antibiotics will be covered during the Pharmacology portion of the course. However at this time, it is prudent to recognize that the basis of antimicrobial action depends on aspects of bacterial structure and metabolism that are distinct from those of our own cells. Most antibiotics fall into five classes affecting: • Cell wall/membrane integrity: Most common antibiotic target of antibiotics, affects peptidoglycan synthesis or integrity of the membrane • Protein synthesis: Second most common category of antibiotics, site of action can be the 50S or 30S ribosomal subunit or peptide chain elongation • RNA synthesis: Target is RNA polymerase, which is necessary for transcription • DNA replication: Targets include topoisomerases that are required for DNA replication itself and enzymes that are required for synthesis of nucleic acids, which are required for DNA replication. • Metabolism: Compounds compete with or inhibit enzymes necessary for production of metabolites essential to bacterial survival including folic acid.

The correct answer is a