question What is the primary role of microorganisms in the sulfur cycle

Which of the following is a viral disease in humans?

A. Influenza
B. Tuberculosis
C. Cholera
D. Malaria

Which process involves the conversion of atmospheric nitrogen into ammonia?

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

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

A. Cellular support and transport
B. Synthesis of proteins
C. DNA replication
D. Cell wall formation

Which microorganism is responsible for causing dental caries?

A. Streptococcus mutans
B. Escherichia coli (E. coli)
C. Candida albicans
D. Mycobacterium tuberculosis

What is the primary role of antibiotics in microbiology?

A. Inhibiting or killing bacteria
B. Enhancing viral replication
C. Promoting fungal growth
D. Facilitating protozoan infections

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

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

Which microorganism is responsible for the production of lactic acid in fermentation?

A. Lactobacillus
B. Saccharomyces cerevisiae (brewer's yeast)
C. Clostridium butyricum
D. Escherichia coli (E. coli)

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 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)

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)