Antibiotics targeting Bacterial Cell Wall Flashcards

Dr. Gartenberg

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1
Q

The _____ enzyme joins bacterial sugars to make Polysaccharide chains

A

Transglycosylase

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2
Q

The ____ enzymes join the sugar-linked peptides to x-link polysaccharide chains

A

Transpeptidase

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3
Q

Normally, bacterial cell walls grow with the D-Ala D-ala being link by a _____ attached to an anyme, which then allows Glycine to come in with a substitution reaction

A

Serine

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4
Q

B-lactam antibiotics cause the amino acid ____ to irreversibly bind onto the b-lactam ring

A

Serine

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5
Q

Clavulanic acid and Tazobactam, and Avibactam are all _____ inhibitors, which is great for pharmacists to fight back!

A

B-lactamase

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6
Q

N-acetyl Glucosamine and N-acetylemuramic acid are:

A

Constituents of the peptidoglycan layer

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7
Q

Cefepime is a ___th generation Cephalosporin, which is most resistant to the B-lactamases and is true Broad spectrum

A

4

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8
Q

Monobactam antibiotics only work toward Gram _____

A

Negative

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9
Q

Daptomycin is a bacterial cell membrane ____ former, without cell rupture

A

Pore

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10
Q

Polymyxins target Gram _____ bacteria

A

Negative

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11
Q

For cell wall assembly, Nag needs to go to NAM; the drug _____ blocks this (GREEK LIGHT)

A

Fosfomycin

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12
Q

Fosfomycin binds to the _____ enzyme to block NAG from going to NAM in Cell wall assembly

A

MurA

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13
Q

For cell wall assembly, P-P needs to get phosphatased to bring NAM-NAG outside, the drug _____ blocks this

A

Bacitracin (Base Hunter makes your Pee Pee go Up)

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14
Q

Bacitaricin inhibits the lipid ____ that helps become a carrier of the NAM-Nag

A

Phosphatase

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15
Q

The antibiotic ______ blocks the L-ALA transformation into D-ALA D-ALA

A

D-cycloserine

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16
Q

D-cycloserine blocks _____ from becoming ______

A

L-ala, D-ala

17
Q

The Best Cephalosporin for MRSA is ______, aside from 4th gens

A

Ceftaroline

18
Q

3 B-lactamase inhibitors

A
  1. Clavulanic Acid
  2. Tazobactam
  3. Avibactam
19
Q

3rd Generation _____ such as Ceftazidime, extend Gram - at the expense of Gram + and WON’T CROSS-REACT with Penicillin allergies

A

Cephalosporins

20
Q

Two differences between Cefazolin (1st gen Cephalo) and Cefepime (4th gen Cephalo)

A
  1. 4th Gen penetrates CNS

2. 4th gen works both Gram Positive and Gram Negative