TEST BANK Microbiology with Diseases by Body System (6TH ED) By Bauman, Edition.pdf

Test Bank
Microbiology with Diseases by Body
System (6TH ED) By Bauman,Edition
MICROBIOLOGY PRACTICE EXAM

🧠 Questions 1–100 (Original MCQs + Rationales)

BASIC MICROBIOLOGY
1. Microorganisms are best defined as:​
A. Large organisms​
B. Microscopic living organisms​
C. Only bacteria​
D. Only viruses​
✔ Answer: B​
✔ Rationale: Microbes include bacteria, viruses, fungi, protozoa.



2. Prokaryotic cells differ from eukaryotic cells by lacking a:​
A. Cell membrane​
B. Nucleus​
C. Cytoplasm​
D. Ribosome​
✔ Answer: B



3. Bacteria reproduce primarily through:​
A. Mitosis​
B. Binary fission​
C. Meiosis​
D. Budding​
✔ Answer: B

,4. Gram-positive bacteria have:​
A. Thin cell wall​
B. Thick peptidoglycan layer​
C. Outer membrane​
D. No wall​
✔ Answer: B



5. Gram-negative bacteria contain:​
A. No membrane​
B. Outer lipid membrane​
C. Thick wall only​
D. DNA only​
✔ Answer: B



6. Bacterial DNA is located in the:​
A. Nucleus​
B. Nucleoid​
C. Mitochondria​
D. Ribosome​
✔ Answer: B



7. A pathogen is:​
A. Helpful microbe​
B. Disease-causing organism​
C. Nutrient​
D. Cell structure​
✔ Answer: B



8. Normal microbiota are:​
A. Harmful always​
B. Beneficial microbes​
C. Viruses​
D. Dead cells​
✔ Answer: B

, 9. Sterilization means:​
A. Reducing microbes​
B. Killing all microbes​
C. Killing some bacteria​
D. Cleaning only​
✔ Answer: B



10. Disinfection reduces:​
A. All microbes​
B. Most pathogens​
C. Only viruses​
D. Only fungi​
✔ Answer: B




🔹 IMMUNE SYSTEM (21–40)
21. Immunity refers to:​
A. Digestion​
B. Defense against infection​
C. Circulation​
D. Respiration​
✔ Answer: B



22. Innate immunity is:​
A. Specific​
B. Non-specific​
C. Learned​
D. Artificial​
✔ Answer: B



23. Adaptive immunity is:​
A. Immediate​
B. Specific and memory-based​
C. Weak​
D. Non-specific​
✔ Answer: B