SZABMU AHS 2026 Bacteriology Free Quiz 1

1. Bacteria are classified as which type of organism?

A. Prokaryotic B. Eukaryotic C. Viral D. Fungal

2. Which bacterial shape is spherical?

A. Bacilli B. Cocci C. Spirilla D. Vibrio

3. What is the characteristic of Gram-positive bacterial cell wall?

A. Thin peptidoglycan and outer membrane B. Thick peptidoglycan and outer membrane C. Thick peptidoglycan, no outer membrane D. No peptidoglycan

4. What is the primary function of bacterial flagella?

A. For attachment B. For genetic exchange C. For storage D. For motility

5. How do most bacteria reproduce?

A. Binary fission B. Budding C. Fragmentation D. Sporulation

6. What is the function of bacterial endospores?

A. For reproduction B. For survival in adverse conditions C. For motility D. For nutrient absorption

7. Which type of bacteria is killed by oxygen?

A. Require CO2 B. Require oxygen C. Grow without oxygen but tolerate it D. Cannot survive in oxygen

8. What is the main component of bacterial cell walls?

A. Peptidoglycan B. Lipopolysaccharide C. Teichoic acid D. Cellulose

9. What are extrachromosomal DNA molecules in bacteria called?

A. Chromosomal DNA B. Plasmids C. Ribosomes D. Mesosomes

10. What is the primary role of bacterial pili?

A. Motility B. Protection C. Adhesion D. DNA transfer