Evaluation of Aleohel.ts \"ectiveness as an Antiseptic 2In general what offece a

Question

Evaluation of Aleohel.ts "ectiveness as an Antiseptic 2In general what offece ao hve on the levet of skin contaminants 3. Is there any difference between the effects of dipping versas swabbing 4 There is definitely survival of some mmicroorganisms Which methodl appears to be more effective? Without staining or even after alcohol treatment. microscopic scrutiny, predict what types of microbes are growing on the right thumb impression after treatment Short-Answer Questions (see Exercise 35 for a definition of antiseptic) 1. For what purposes is alcohol a useful antiseptic B. 2. What advantages does alcohol have over hand soap for antisepsis of the skin? 3. Why does treatment of human skin with alcohol not create a completely sterile environment? 4. Explain how the left thumb acted as a control for the experiment. 232

Explanation / Answer

ans-2 -It is effective to kill bacteria or reduces them but completely sterile, which means it acts as a rapid acting antiseptic affect.

ans-3-Yes, swabbing is more effective then dipping.

ans-4-Gram-positive bacteria due to the prescenceof thicker peptidoglycan layer and no Lipopolysaccharides to dissolve.Alcohol also unable to kill the fungi.

Short type-

ans-1 -To treat the skin before injecting or drawing blood.

2 ans- kill bacteria onskin and get evaporated after use.Hand soap also able to kill bacteria if is has an antimicrobial agent.

3 ans-There are cracks and crevises in the skin and some may be hiding in the crevices of our skin.

4 ans-The unwashed thumbs acted as a control.

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