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

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

Which microorganism is responsible for the production of butyric acid?

A. Clostridium butyricum
B. Bacillus subtilis
C. Streptococcus pneumoniae
D. Candida albicans

Which microorganism is involved in the nitrogen cycle?

A. Nitrosomonas
B. Saccharomyces cerevisiae (brewer's yeast)
C. Staphylococcus aureus
D. Plasmodium falciparum (malaria parasite)

What is the primary mode of transmission of the influenza virus?

A. Respiratory droplets
B. Contaminated water
C. Vector (e.g., mosquito)
D. Sexual contact

Which microorganism is responsible for the production of penicillin?

A. Penicillium
B. Streptococcus mutans
C. Escherichia coli (E. coli)
D. Mycobacterium tuberculosis

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 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

Which microorganism is responsible for the production of insulin in genetic engineering?

A. Escherichia coli (E. coli)
B. Saccharomyces cerevisiae (brewer's yeast)
C. Streptococcus pyogenes
D. Mycobacterium tuberculosis

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

A. Cephalosporium spp.
B. Bacillus anthracis
C. Pseudomonas aeruginosa
D. Escherichia coli (E. coli)

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

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