SZABMU AHS 2026 Bacteriology Free Quiz 10

1. What is the term for bacterial suicide under stress, mediated by TA systems?

A. Apoptosis B. Necrosis C. Programmed cell death D. Autophagy

2. Which regulon responds to phosphate limitation in bacteria?

A. Pho regulon B. Nitrogen regulon C. Carbon regulon D. Sulfur regulon

3. Which type of cellulose is produced by certain bacteria?

A. Cellulose from plants B. Bacterial cellulose C. Chitin D. Pectin

4. Which secretion system is responsible for bacterial conjugation?

A. Type III secretion B. Type IV secretion C. Type VI secretion D. Type II secretion

5. What is the complex developmental process in myxobacteria?

A. Sporulation alone B. Biofilm formation C. Fruiting body formation D. Swarming motility

6. Which transport system phosphorylates the sugar during uptake?

A. Phosphotransferase system B. ABC transporters C. Porins D. Symporters

7. What are RNA-based regulatory elements that respond to metabolites?

A. Transcription factors B. Riboswitches C. Sigma factors D. Enhancers

8. Which proteins form channels in the outer membrane for small molecules?

A. Pili B. Porins C. Lipopolysaccharide D. Braun's lipoprotein

9. Which Che protein, when phosphorylated, binds the flagellar motor to change rotation?

A. CheW and CheA B. CheY and CheZ C. CheB and CheR D. All of the above