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Select the correct answer for each question.
1. Which method achieves complete sterilization?
2. Bacterial endospores are most resistant to control methods because:
3. Which term means "to inhibit bacterial growth"?
4. Quaternary Ammonium Compounds (Quats) are ineffective when:
5. Which factor does NOT affect the effectiveness of control methods?
Match the term with its correct definition by selecting the appropriate letter.
Answer briefly and concisely.
1. Explain why 70% alcohol is more effective as an antiseptic than 95% alcohol.
2. List TWO reasons why bacterial endospores are the most resistant microbial structures.
3. Differentiate between bactericidal and bacteriostatic actions.
4. Why is filtration considered a sterilization method for heat-sensitive solutions?
5. Give ONE advantage and ONE disadvantage of using ultraviolet (UV) light for disinfection.
Answer in complete sentences with clear reasoning.
1. A hospital needs to choose a method for sterilizing surgical instruments. Compare autoclaving and chemical sterilization with glutaraldehyde, recommending which method would be more appropriate and explaining THREE reasons for your choice.
2. A restaurant kitchen has contaminated cutting boards with raw chicken. Describe the step-by-step procedure you would recommend for proper disinfection, including:
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