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

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

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

A. Streptomyces griseus
B. Bacillus anthracis
C. Pseudomonas aeruginosa
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

What is the primary function of the endoplasmic reticulum in eukaryotic microbial cells?

A. Synthesis of proteins and lipids
B. ATP synthesis
C. DNA replication
D. Cell wall formation

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 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)

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

A. Synthesis of ribosomal RNA
B. Synthesis of proteins
C. DNA replication
D. Cell wall formation

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

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)

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

A. Decomposition of organic matter
B. Nitrogen fixation
C. Denitrification
D. Photosynthesis