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

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

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

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

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

A. Recycling of phosphorus in ecosystems
B. Nitrogen fixation
C. Photosynthesis
D. Cellular respiration

What is the function of the Gram stain in microbiology?

A. Distinguishing bacterial cell walls
B. Identifying viral infections
C. Staining fungal hyphae
D. Differentiating plant cells

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

A. Recycling of phosphorus in ecosystems
B. Nitrogen fixation
C. Photosynthesis
D. Cellular respiration

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 process involves the conversion of atmospheric nitrogen into ammonia?

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

Which of the following is a prokaryotic microorganism?

A. Bacteria
B. Fungi
C. Protozoa
D. Algae

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