question Which process involves the conversion of atmospheric nitrogen into ammonia

What is the primary function of the mesosome in bacterial cells?

A. Cellular respiration
B. DNA replication
C. Protein synthesis
D. Cell division regulation

What is the primary role of microorganisms in the oxygen cycle?

A. Oxygen production through photosynthesis
B. Nitrogen fixation
C. Denitrification
D. Cellular respiration

Which process involves the conversion of nitrate to nitrogen gas in the nitrogen cycle?

A. Denitrification
B. Nitrogen fixation
C. Nitrification
D. Ammonification

Which microorganism is responsible for the production of beer in brewing?

A. Saccharomyces cerevisiae (brewer's yeast)
B. Lactobacillus
C. Streptococcus pyogenes
D. Pseudomonas aeruginosa

What is the primary function of microorganisms in the nitrogen cycle?

A. Conversion of nitrogen between different forms
B. Photosynthesis
C. Cellular respiration
D. Synthesis of amino acids

Which microorganism is used in the production of antibiotics such as erythromycin?

A. Saccharopolyspora erythraea
B. Bacillus anthracis
C. Pseudomonas aeruginosa
D. Escherichia coli (E. coli)

Which microorganism is used in the production of antibiotics such as tetracycline?

A. Streptomyces aureofaciens
B. Bacillus anthracis
C. Pseudomonas aeruginosa
D. Escherichia coli (E. coli)

Which microorganism is responsible for the production of citric acid in the citric acid cycle (Krebs cycle)?

A. Acetobacter aceti
B. Saccharomyces cerevisiae (brewer's yeast)
C. Aspergillus niger
D. Escherichia coli (E. coli)

What is the primary function of the endocytosis in eukaryotic microbial cells?

A. Cellular uptake of substances
B. Synthesis of proteins
C. DNA replication
D. Cell wall formation

Which process involves the conversion of organic nitrogen compounds to nitrate in the nitrogen cycle?

A. Nitrification
B. Nitrogen fixation
C. Ammonification
D. Denitrification