MICROBIOLOGY - M.H. Serhiichuk - 2008

Chapter 6. PHYSIOLOGICAL CHARACTERISTICS OF ANAEROBIC MICROORGANISMS

Self-Assessment Questions

1. How are microorganisms classified based on their oxygen requirements and the type of terminal electron acceptor?

2. What type of phosphorylation is characteristic of fermentative Bacteria?

3. What reactions lead to ATP generation during Fermentation?

4. What substances serve as TERMINAL ELECTRON ACCEPTORS during fermentation, and what is their origin?

5. Why do fermentation processes result in the accumulation of large amounts of energy-rich products?

6. In which Types of fermentation are Pyruvate, acetaldehyde, 3-phosphoglyceraldehyde, oxaloacetate, or acetoacetyl-CoA used as electron acceptors?

7. What are the Structural Features of the Respiratory Chain in bacteria that perform Anaerobic Respiration?

8. Name the high- and low-potential types of anaerobic respiration.

9. What are the Specific features of proton gradient formation in sulfate-reducing bacteria?

10. How are sulfate reducers categorized according to their utilization of acetate?

11. How is the acetyl-CoA pathway utilized by homoacetogens, sulfate reducers, and methanogens?

12. What is the core mechanism of methanogenesis across different substrates?



Last update: 13/08/2026

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