5) With what general bacterial process do beta-lactam antibiotics interfere? (1.

Question

5) With what general bacterial process do beta-lactam antibiotics interfere? (1.05 pts)

8) With what general bacterial process do tetracycline antibiotics interfere ? (1.1 pts)

none of the above

9) With what general bacterial process do polymyxin antibiotics primarily interfere ? (1.1 pts)

5) With what general bacterial process do beta-lactam antibiotics interfere? (1.05 pts)

protein synthesis transcription cell wall synthesis DNA integrity/maintenance or production of nucleotides cell membrane function/integrity intermediary metabolism none of the above

8) With what general bacterial process do tetracycline antibiotics interfere ? (1.1 pts)

protein synthesis transcription cell wall synthesis DNA maintenance or production of nucleotides cell membrane function/integrity intermediary metabolism

none of the above

9) With what general bacterial process do polymyxin antibiotics primarily interfere ? (1.1 pts)

protein synthesis transcription cell wall synthesis DNA integrity/maintenance or production of nucleotides cell membrane function/integrity intermediary metabolism none of the above

Explanation / Answer

7) Beta lactum antibiotics are broad spectrum antibiotics and and have the beta latum ring in their stucture. These antibiotics act by inhibiting the penicillin binding proteins which catalyse the bacterial cell wall synthesis. So they interfere with bacterial cell wall synthesi.

Hence option third cell wall synthesis is correct.

8) Tetracycline antibiotics inhibit the protein synthesis by inhibiting the binding of aminoacyl-tRNA to mRNA-ribosome complex. They mainly bind with 30S ribosomae subunit in mRNA translation complex. Hence they mainly interfer with protein synthesis.

Hence first option protein synthesis is correct.

9) Polymixin antibitics bind with lipopolysaccharide outer cembrae and distroy the both internal and internal cell membranes of bacteria.

Hence they mainly interfere with cell membrane function/ integrity so fisth option is correct.

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