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BISC 261 Exam Questions and answers with complete solutions Latest 2025 Update.

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BISC 261 Exam Questions and answers with complete solutions Latest 2025 Update. Exam Revision Questions And Correct Answers | Graded A+ | 2025/2026|

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BISC 261 Exam Questions and answers with complete solutions Latest Updated 2025 |
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Biocide - ✔️✔️Blanket term for all antimicrobial agents



Sterilization - ✔️✔️The process by which all living cells, spores, or acellular entities are removed from an
object or environment



Disinfection - ✔️✔️The process of killing or removing disease-causing microorganisms



Disinfectants - ✔️✔️Chemical agents that accomplish disinfection



Sanitization - ✔️✔️The process of reducing the microbial population on an object or environment to levels
considered safe by public health authorities



Antiseptics - ✔️✔️Chemical agents applied to living tissue that prevents infection by killing or inhibiting
pathogen growth



Decimal reduction time - ✔️✔️The time required to kill 90% of microorganisms in a sample under some
specific conditions



Selective toxicity - ✔️✔️A chemical agent that kills or inhibits microbial growth but has no or little damageto the
infected host



Therapeutic index - ✔️✔️The ratio of the toxic dose to the therapeutic dose



Toxic dose - ✔️✔️The drug concentration at which the chemical agent becomes too toxic for the infectedhost



Therapeutic dose - ✔️✔️The drug concentration required to effectively treat a bacterial infection

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