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

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

A. Carries extra-chromosomal genes
B. Synthesizes cellular ATP
C. Initiates DNA replication
D. Facilitates protein synthesis

What is the primary role of the glycocalyx in bacterial cells?

A. Protection and adherence
B. Nutrient absorption
C. Facilitates cellular respiration
D. Synthesis of cellular ATP

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 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 focus of microbiology?

A. Study of microorganisms
B. Plant biology
C. Human anatomy
D. Chemical reactions

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

A. Oxygen production through photosynthesis
B. Nitrogen fixation
C. Denitrification
D. Cellular respiration

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 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

Which process involves the conversion of atmospheric nitrogen into ammonia?

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

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

A. Amycolatopsis orientalis
B. Bacillus anthracis
C. Pseudomonas aeruginosa
D. Escherichia coli (E. coli)