Microbiology chapter 20 MCQ antimicrobial drugs

which of the following pairs is mismatched? antihelminthic - inhibition of oxidative phosphorylation. antihelminthic - -inhibition of cell wall synthesis, antifungal - injury to plasma membrane, antifungal- inhibition of mitosis, antiviral- inhibition of DNA synthesis

antihelminthic - inhibition of cell wall

All of the following are modes of actions of antiviral drugs except- A. inhibition of protein synthesis @ 70s ribosomes. B. inhibition of DNA synthesis C. inhibition of RNA synthesis D. inhibition of uncoating E. all of the above are modes of action of antiviral drugs

A. inhibition of protein synthesis @ 70s ribosomes.

which of the following modes of action would not be considered fungicidal? A. inhibition of peptidoglycan synthesis. B. inhibition of mitosis C. injury of plasma membrane D. inhibition of Nucleic Acid synthesis E. all of the above are fungicidal modes of action

A. inhibition of peptidoglycan synthesis

An antimicrobial agent should meet all of the following criteria except A. selective toxicity, B. production of hypersensitivity C. A Narrow spectrum of activity D. no production of drug resistance. E. all of the above are necessary criteria for an antimicrobial

B. production of hypersensitivity

The most selective antimicrobial activity would be exhibited by a drug that? A inhibits cell wall synthesis, B. inhibits protein synthesis, injures the plasma membranes, D. inhibits nucleic acid synthesis, E. all of the above

A. inhibits cell wall synthesis

Antibiotics that inhibit translation have side effects? A. because all cells have proteins, B only in the few cells that make proteins, C. because eukaryotic celss have 80s ribosomes, D. at the 70s ribosomes in eukaryotic cells, E. none of the above is correct.

D. at the 70s ribosomes in eukaryotic cells

which of the following will not affect eukaryotic cells? A. Inhibition of the mitotic spindle, B. binding with sterol, C. binding to 80s ribosomes, D. binding to DNA, E. all of the above will affect them

E. all of the above will affect them

Cell membrane damage causes death because? A. because the cell undergoes osmotic lysis, B. cell contents leak out, C. the cell plasmolyzes, D. the cell lack a wall. E. none of the above is correct

B. cell contents leak out

A drug that intercalates into DNA has the following effects. which one leads to the others? A. it disrupts transcription, B. it disrupts translation, C. It interferes with DNA replication, D. it causes mutations, E. it alters proteins?

C. It interferes with DNA replication

Chloramphenicol binds to the 50s portion of a ribosome, which interfere with ? A, Transcription in prokaryotic cells, B. transcription in eukaryotic cells, C. translation in prokaryotic cells, D. translation in eukaryotic cells, E. DNA synthesis

C. translation in prokaryotic cells