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

Which microorganism is used in the production of antibiotics?

A. Streptomyces
B. Saccharomyces cerevisiae (brewer's yeast)
C. Penicillium
D. Escherichia coli (E. coli)

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

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

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

A. Nitrification
B. Nitrogen fixation
C. Denitrification
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 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 yogurt?

A. Lactobacillus
B. Salmonella
C. Pseudomonas aeruginosa
D. Clostridium botulinum

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

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

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 role of microorganisms in the process of bioremediation?

A. Breakdown of pollutants and contaminants
B. Production of toxins
C. Disruption of ecosystems
D. Inhibition of plant growth