Bacteriostatic Total cell count Bacteriocidal Total cell count Total cell count

Question

Bacteriostatic Total cell count Bacteriocidal Total cell count Total cell count Viable cell count Remove agent Viable cell count Viable cell count Time Time Time Figure 5.39 Different types of antimicrobial agents. (a) acte ostatic age ts ihitit but ot kil?) Bacte dal agents allc) Bacteriolyic agents lyse cells At the time indicated by the arrow,a growth-inhibitory concentration of each antimicrobial agent was added to an exponentially growing culture. The turbidity and viable counts shown are characteristic of each type of agent

Explanation / Answer

Answer=

Consider the following list of chemical agents : benzalkonium chloride, triclosan, pine oils, penicillin, betadine, and formaldehyde. Categorize these agents as bacteriostatic, bacteriocidal, or bacteriolytic. Poing out their mechanisms of action.

bacteriostatic =  triclosan ,formaldehyde.

bacteriocidal = benzalkonium chloride ,  penicillin ,pine oils ,betadine

bacteriolytic =

mechanisms of actions of

benzalkonium chloride = The mechanism of action is thought to be due to distruption of intermolecular interavtions.

this can cause dissociation of cellular membrane lipid bilayers ,which compromises cellular permeability

triclosan = it targets bacteria primarily by inhibiting fatty acid synthesis.

penicillin = inhibits cell wall synthesis

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