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Portage Learning: Microbiology
Module 6 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What is the primary function of antimicrobial drugs?✔✔ To kill or inhibit the growth of microorganisms
What type of antimicrobial kills bacteria directly?✔✔ Bactericidal
What type of antimicrobial slows bacterial growth without killing them?✔✔ Bacteriostatic
What is the target of penicillin in bacterial cells?✔✔ Cell wall synthesis
What is the primary structure targeted by beta-lactam antibiotics?✔✔ Peptidoglycan layer 1 / 2
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What enzyme breaks down beta-lactam antibiotics?✔✔ Beta-lactamase
What kind of bacteria are generally more resistant to antibiotics due to their outer membrane?✔✔ Gram-negative bacteria
What process describes how bacteria transfer resistance genes?✔✔ Horizontal gene transfer
What is one common mechanism of antibiotic resistance?✔✔ Efflux pumps expelling the drug
What is a broad-spectrum antibiotic?✔✔ One that targets many different types of bacteria
What is a narrow-spectrum antibiotic?✔✔ One that targets a specific group of bacteria
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