question Which microorganism is responsible for the production of citric acid in the citric acid cycle Krebs cycle

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

A. Cellular support and transport
B. Synthesis of proteins
C. DNA replication
D. Cell wall formation

What is the primary function of the ribosome in microbial cells?

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

What is the primary role of bacteriophages in microbiology?

A. Viruses that infect bacteria
B. Bacteria that infect viruses
C. Fungi that infect bacteria
D. Protozoa that infect bacteria

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 used in the production of vinegar?

A. Acetobacter
B. Lactobacillus
C. Clostridium acetobutylicum
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

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 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 microtubules in eukaryotic microbial cells?

A. Cellular support and transport
B. Synthesis of proteins
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)