Non-antibiotic Antibacterial Agents MCQs PDF

MCQs on Non-antibiotic Antibacterial Agents 1. Which of the following is a high-level disinfectant? A. Alcohol B. Glutaraldehyde C. Chlorhexidine D. Phenol Correct Answer: B 2. What does low-level disinfection NOT destroy? A. Most vegetative bacteria B. Fungi C. Mycobacterium tuberculosis...

MCQs on Non-antibiotic Antibacterial Agents 1. Which of the following is a high-level disinfectant? A. Alcohol B. Glutaraldehyde C. Chlorhexidine D. Phenol Correct Answer: B 2. What does low-level disinfection NOT destroy? A. Most vegetative bacteria B. Fungi C. Mycobacterium tuberculosis D. Resistant bacteria Correct Answer: C 3. Which of the following is safe for use on human tissues? A. Disinfectants B. Antiseptics C. Sterilants D. Sanitizers Correct Answer: B 4. What is the primary purpose of preservatives in pharmaceutical preparations? A. Eliminate bacterial spores B. Prevent microbial spoilage C. Sterilize the product D. Enhance drug efficacy Correct Answer: B 5. Which factor does NOT influence the effectiveness of disinfectants? A. Concentration of the agent B. Temperature C. Microbial genome D. Presence of organic material Correct Answer: C 6. Which type of virus is generally more resistant to disinfectants? A. Lipid-enveloped viruses B. Non-lipid viruses C. DNA viruses D. RNA viruses Correct Answer: B 7. Biofilms are resistant to antimicrobials by: A. Producing neutralizing enzymes B. Forming physical barriers C. Physiological gradients within the biofilm D. All of the above Correct Answer: D 8. Which of the following is a property of an ideal antimicrobial agent? A. High tissue toxicity B. Stable under various conditions C. Low microbial activity D. Requires high concentration Correct Answer: B 9. Prions are resistant to which process? A. Cleaning B. Disinfection C. Low-temperature storage D. Detergents Correct Answer: B 10. Which chemical is commonly used for sterilization in healthcare facilities? A. Alcohol B. Hydrogen peroxide gas plasma C. Chlorhexidine D. Quaternary ammonium compounds Correct Answer: B