MICROBIOLOGY - M.H. Serhiichuk - 2008

Chapter 9. THE ROLE OF MICROORGANISMS IN THE BIOGEOCHEMICAL CYCLING OF MATTER IN NATURE

Self-Assessment Questions

1. What is The process of decomposition of nitrogenous Organic compounds with the release of ammonia called?

2. What occurs during the nitrification process? Which microorganisms are involved?

3. What happens to soil nitrates?

4. Name symbiotic and free-living nitrogen-fixing organisms.

5. Describe the Functions and Structure OF THE Nitrogenase complex.

6. Outline the main processes involved in the MICROBIAL TRANSFORMATION OF sulfur, iron, phosphorus, and carbon compounds.

Last update: 13/08/2026

Editorial and Educational Adaptation: This material has been compiled based on the primary/original source text. The project team performed an editorial review, corrected technical inaccuracies, structured sections, and adapted the content for an educational format.

What was processed:

elimination of formatting defects (OCR errors, structural breaks, corrupted characters);
editorial organization of content;
standardization of terminology in accordance with academic sources;
verification of factual statements against the original source text.

All mentions of the author, publication year, and origin of the primary text have been preserved in accordance with the source.