question Which process involves the conversion of ammonia to nitrate in the nitrogen cycle

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

Which microorganism is responsible for causing dental caries?

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

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 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)

What is the primary function of the periplasmic space in bacterial cells?

A. Houses enzymes for nutrient processing
B. Facilitates motility
C. Protects against desiccation
D. Synthesizes cellular ATP

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

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

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

A. Conversion of sulfur between different forms
B. Nitrogen fixation
C. Photosynthesis
D. Cellular respiration

What is the primary function of the polymerase chain reaction (PCR) in microbiology?

A. Amplifying DNA fragments
B. Synthesizing proteins
C. Producing antibiotics
D. Generating ATP

Which process involves the conversion of ammonia to nitrite in the nitrogen cycle?

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