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BISC 261 Exam Questions and answers with complete solutions Latest Updated 2025/ 2026. Exam Questions and Correct Answers With 100% Correct Answers | Latest 2025/2026 |

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BISC 261 Exam Questions and answers with complete solutions Latest Updated 2025/ 2026. Exam Questions and Correct Answers With 100% Correct Answers | Latest 2025/2026 |

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BISC 261 Exam Questions and answers with complete solutions Latest Updated 2025 |
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a beta-lactam antibiotic. the first true antibiotic to be discovered and used clinically - ✔️✔️penicillin



the ability of chemotherapeutic agent to kill or inhibit a microbial pathogen while damaging the host as
little as possible - ✔️✔️selective toxicity



the ratio between the toxic dose and the therapeutic dose of a drug, use as a measure of the drug's
relative safety - ✔️✔️therapeutic index



chemotherapeutic agents effective only against a limited variety microorganisms - ✔️✔️narrow-spectrumdrug



chemotherapeutic agents that are effective against many different kinds of pathogens - ✔️✔️broad-spectrum
drugs



causing death - ✔️✔️cidal



inhibiting or retarding growth - ✔️✔️static



the lowest concentration of a drug that will prevent the growth of a particular microorganism -
✔️✔️minimal inhibitory concentration (mic)



the lowest concentration of a drug that will kill a particular microorganism - ✔️✔️minimal lethal
concentration (mlc)



a disk diffusion test to determine the susceptibility of a microorganism to chemotherapeutic agents + -
✔️✔️kirby-bauer method

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