SZABMU AHS 2026 Bacteriology Free Quiz 8

1. What is the primary function of fimbriae in pathogenic bacteria?

A. Motility B. Adhesion C. DNA transfer D. Toxin secretion

2. Which process involves bacteriophage integration into the bacterial genome?

A. Lysogeny B. Lytic cycle C. Transduction D. Conjugation

3. What is the major mechanism for the spread of antibiotic resistance genes among bacteria?

A. Mutation B. Horizontal gene transfer C. Vertical gene transfer D. Gene duplication

4. What is the effect of the stringent response alarmone (p)ppGpp?

A. Promotes growth B. Inhibits translation and activates stress genes C. Repairs DNA D. Induces sporulation

5. What proteins assist in proper folding of nascent bacterial proteins?

A. Proteases B. Chaperones C. Enzymes D. Transcription factors

6. What is the function of the type III secretion system in pathogenic bacteria?

A. Injection of effectors into host B. Secretion of toxins outside C. Adhesion only D. DNA transfer

7. What is the primary structural component of the biofilm matrix?

A. Lipids B. Exopolysaccharide C. Proteins D. DNA

8. Which virulence factors are involved in acquiring iron from the host?

A. Toxins B. Siderophores C. Capsules D. Flagella

9. What membrane lipids in bacteria are analogous to eukaryotic cholesterol?

A. Cholesterol B. Hopanoids C. Phospholipids D. Glycolipids

10. Which transcription factor is the master regulator of sporulation in Bacillus?

A. Spo0A B. Sigma 70 C. RecA D. LexA