SZABMU AHS 2026 Bacteriology Free Quiz 4

1. Which type of media contains extra nutrients for fastidious bacteria?

A. Selective B. Differential C. Enriched D. Minimal

2. In bacterial growth curve, which phase is characterized by no increase in cell number while cells prepare for division?

A. Lag phase B. Log phase C. Stationary phase D. Death phase

3. Which phase of the bacterial growth curve shows the highest rate of cell division?

A. Lag phase B. Log phase C. Stationary phase D. Death phase

4. In which phase does bacterial growth plateau due to nutrient depletion?

A. Lag phase B. Log phase C. Stationary phase D. Death phase

5. In which phase do bacterial cells die faster than they divide?

A. Lag phase B. Log phase C. Stationary phase D. Death phase

6. What are bacterial endospores resistant to?

A. Heat, radiation, chemicals B. Antibiotics C. Phagocytosis D. Desiccation only

7. What is the main characteristic of pathogenic bacteria?

A. Provide benefits B. Cause disease C. Help digestion D. Fix nitrogen

8. What are exotoxins?

A. Lipopolysaccharides B. Proteins secreted by bacteria C. Cell wall components D. Endotoxins

9. What are endotoxins derived from?

A. Proteins secreted by bacteria B. Lipopolysaccharides C. Enzymes D. Toxins in food

10. Penicillin inhibits which bacterial process?

A. Cell wall synthesis B. Protein synthesis C. DNA replication D. Metabolic pathways