question Which microorganism is responsible for the production of antibiotics such as amphotericin B

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

A. Protection from immune defenses
B. Nutrient absorption
C. Facilitates cell division
D. Enhances cellular respiration

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

A. Facilitates bacterial conjugation
B. Nutrient absorption
C. Cellular respiration
D. Synthesis of enzymes

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 sulfur cycle?

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

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

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

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

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

Which microorganism is responsible for the production of antibiotics such as gentamicin?

A. Micromonospora purpurea
B. Bacillus anthracis
C. Pseudomonas aeruginosa
D. Escherichia coli (E. coli)

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 ribosome in microbial cells?

A. Protein synthesis
B. Lipid synthesis
C. DNA replication
D. Cell wall formation

Which microorganism is responsible for the production of citric acid in the tricarboxylic acid (TCA) cycle?

A. Citrobacter freundii
B. Saccharomyces cerevisiae (brewer's yeast)
C. Aspergillus niger
D. Escherichia coli (E. coli)