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4) The siderophore enterochelin:
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- -. The compound shown below is an antiparasitic drug called miltefosine. CH3 CH3 CH3 CH3An antimicrobial agent shows selective toxicity when specifically: An antimicrobial agent is said to exhibit selective toxicity when it specifically: Select one: O does not induce the development of resistant strains of microorganisms O kills or destroys many species of microorganisms O kills or inhibits the microorganism with minimal or no damage to host cells O penetrates rapidly into host cells and tissues O does not interfere with host defense microorganismsBox lists options: Thioredoxin is: oxidized, reduced activity causes the: inhibition, activation enzymes by: forming, eliminating there is: reduced, oxidized Benson cycle is: more, less
- Which statement is not an aim in the use of drugs for antimicrobialchemotherapy? The drug shoulda. have selective toxicityb. be active even in high dilutionsc. be broken down and excreted rapidlyd. be microbicidalMechanism of action of electron transport inhibitors. Antimycin A.As the immune system increases fluids in a tissue resulting in swelling and increased mucus production during infection a bacteria will utilize to maintain themselves in a patient's tissue. Salmonella would utilize these to maintain themselves in the gastrointestinal tract and not be pushed out of the host by peristalsis. O Adhesins O Exoenzymes O Endotoxins O Exotoxins O None of the above apply
- Which one of the following statements regarding antibiotics is FALSE? It is a substance produced by microorganisms It is a substance produced totally by chemical synthesis It is a substance produced partially by chemical synthesis JEANETEN SEER E It is a substance produced by our immune system in response to a pathogen OIt kills or inhibits the growth of micro-organismsSome S. aureus stains have a number of virulence factors including O Lipase which convey resistance to lipids and staphlokinase which clots the blood. O Lipase which digests lipids and B-lactamase which breaks the matrix between cells. O coagulase which dissolves blood clots and staphlokinase which clots the blood. coagulase which clots the blood and B-lactamase which conveys resistance to penicillin. Question 26 A patient has an infection caused by a bacterial species that produces Deoxyribonucleases, M protein, Streptokinases, Streptolysin S, Exotoxin A, and Hyaluronidase. Which disease does this person have? O Shigellosis O Necrotizing fasciitis O Pertussis Rabies 12 MacBook Air ....Which of the following is the site of action for penicillin? O Cell wall Cell membrane O Protein O DNA
- Which antimicrobial agents have the narrowest spectrum of action? antivirals antifungals beta-lactams sulfanilamidesBottom of Form Penicillin is a narrow spectrum antibiotic because it only affects bacteria with mycolic acid in its cell wall, such as Mycobacterium tuberculosis. it only affects viruses it only affects Gram-negative organisms it only affects Gram-positive organismsBottom of Form Which of the following antibiotics might be destroyed by beta-lactamase enzymes? amphotericin B and ciprofloxacin streptomycin penicillin ciprofloxacinBottom of Form Which is incorrect about how the pharmaceutical industry has discovered drugs over the past 100 years? The process of discovery has involved custom-designing chemical compounds that we know will bind to target enzymes. The process of discovery has involved screening for chemicals that are toxic to bacteria while being less toxic to human cells. The process of discovery has involved screening thousands of randomly…Prepare a concept map on the large and diverse family of Enterobacteriaceae. The following are some of the concepts you may connect with a proposition: — general and unique characteristics; — clinical manifestations; — mode of transmission; — virulence factors; — biochemical test results (e.g. oxidase positive)Haemophilus influenzae must be grown on special blood agars, e.g. chocolate agar, which is blood agar treated with heat to release gorwth factors and to destroy inhibitory enzymes. Thus Haemophilus is described as fastidious oxygen-sensitive oxygen labile voracious