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On your antiseptic plate, after incubation you saw a large clearing

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Question

1) On your antiseptic plate, after incubation you saw a large clearing surrounding the mercurochrome disk for S. aureus but no clearing at all for E. coli. What does this mean?;A) Both E. coli and S. aureus are resistant to mercurochrome.;B) S. aureus is sensitive to mercurochrome and E. coli is resistant.;C) Both E. coli and S. aureus are sensitive to mercurochrome.;D) S. aureus is resistant to mercurochrome and E. coli is sensitive;2) Which of the following bacteria produces an ENDOSPORE and will therefore be more resistant to most disinfectants?;A) Mycobacterium tuberculosis;B) Staphylococcus epidermidis;C) Bacillus subtilis;D) Escherichia coli;3) What of the following is TRUE concerning the difference between disinfectants and antiseptics?;A) Disinfectants are applied to host tissue and antiseptics are applied to inanimate objects;B) Antiseptics are antiviral and disinfectants are antifungal.;C) Antiseptics are applied to host tissue and disinfectants are applied to inanimate objects.;D) Disinfectants are given intravenously and antiseptics are given topically.;4) What does the enzyme caseinase do?;A) degrade starch;B) hydrolyze milk protein;C) synthesize fat;D) digest lipids

 

Paper#17621 | Written in 18-Jul-2015

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