lab final

Question 1

penicillin mode of action

Answer 1

prevents transpeptidation of N-acetylmuramic acids

Question 2

Streptomycin

Answer 2

has an affinity for bacterial ribosomes, causing misreading of mRNA codons

Question 3

Chloramphenicol

Answer 3

has an affinity for bacterial ribosomes, prevent peptide formation between amino acids during protein synthesis

Question 4

tetracyclines

Answer 4

prevent hydrogen bonding between anticodon

Question 5

Bacitracin

Answer 5

inhibits cell wall synthesis

Question 6

Polymxin

Answer 6

destruction of cell membrane

Question 7

Rifampin

Answer 7

inhibits RNA synthesis

Question 8

quinolone

Answer 8

inhibits DNA synthesis

Question 9

Crowded plate

Answer 9

simple screening technique for detecting and isolating antibiotic producing bacteria

Question 10

Biofilm

Answer 10

complex communities of signalling molecules polysachrides, protein produced by bacteris

Question 11

Colonization

Answer 11

interceullular communication, polysacchride secretion

Question 12

Quorum sensing

Answer 12

bacterial communication process involving producing, detection and coordinated responses