question Which microorganism is responsible for fermentation

Which microorganism is used in the production of yogurt?

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

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 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 nitrate in the nitrogen cycle?

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

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 of the following is an example of a Gram-negative bacterium?

A. Escherichia coli (E. coli)
B. Staphylococcus aureus
C. Bacillus subtilis
D. Clostridium difficile

What is the primary function of the CRISPR-Cas system in microbiology?

A. Defense against viral infections
B. Nutrient absorption
C. Antibiotic production
D. Cell division regulation

What is the primary role of viruses in microbiology?

A. Infecting host cells and replicating
B. Decomposing organic matter
C. Producing antibiotics
D. Facilitating nutrient absorption

What is the function of the endospore in bacteria?

A. Survival in harsh conditions
B. Facilitating nutrient absorption
C. Reproduction
D. Protection from UV radiation

Which microorganism is used in the production of antibiotics?

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