Which reagent is mismatched to the stain for which it is used? A Gram stain = io

Question

Which reagent is mismatched to the stain for which it is used? A Gram stain = iodine B. Schaeffer-Fulton stain = malachite green C. Acid-fast stain = safranin D. Negative stain =nigrosin E. None of the above are mismatched Which would NOT be expected to grow in an anaerobic jar? In aerobic bacteria, most ATP generated from glucose arises from: A. glycolysis B. oxidative phosphorylation C. Krebs cycle D. substrate level phosphorylation E. fermentation If a microbiologist wished to determine whether or not a particular staphylococcus aureus isolate was MRSA, which should be performed? A. Plaque assay B. standard plate count C. Kirby-Bauer procedure D Replica plating E. CPE test Mycoplasma do NOT respond to penicillin therapies. Why is this? A. Penicillin targets a cellular structure that is not present in Mycoplasma B. Penicillin therapies are only effective against Gram negative bacteria C. Most mycoplasmal pneumonias are caused by MRSA D. Penicillin drugs do not cross mycoplasmal membranes E. Most people are allergic to penicillin Pathogens associated with which of the following diseases CANNOT be observed using a light microscope? A. Tuberculosis B. Pertussis C. Mononucleosis D. Syphilis E. Gonorrhea MacConkey, MSA, and EMB agars are all examples of which type of media? A Selective B. Differential C. Both selective and differential D. Neither selective nor differential The trp operon is an example of A. Repressible control at the level of transcription B. control at the level of translation C. Inducible control at the level of transcription D. Inducible control at the level of translation Lipopolysaccharide is present in which of the following? A. Gram-positive bacteria B. Gram-negative bacteria C. Acid-fast bacteria D. All of the answers are correct. E. None of the answers are correct.

Explanation / Answer

24.Lippolysaccharide  are found in the outer membrane of Gram-negative bacteria, and elicit strong immune responses in animals.

23 The trp operon is repressed by TrpR, a transcriptional repressor,

22. Both selective and differential

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