PHYSIOLOGY
SYNAPTIC PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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HIV patients may be allergic to penicillin.
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Penicillin causes antibiotic resistance.
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Penicillin can prevent phagocytes from functioning
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Viruses have no metabolism of their own
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Detailed explanation-1: -HIV is a viral rather than bacterial disease, so antibiotics cannot be used to treat it directly.
Detailed explanation-2: -Viruses and bacteria also have a different structure and a different way of surviving. Viruses are surrounded by a protective protein coating; they don’t have cell walls that can be attacked by antibiotics like bacteria does. It is because of this that antibiotics don’t work on viruses.
Detailed explanation-3: -How does HIV attack the immune system? It binding to the protein CD4 allows the HIV to destroy the CD4+ immune system cells including helper T-cells and macrophages, and eventually stops the development of an immune response by eliminating helper T cells.
Detailed explanation-4: -The most important mechanism of resistance to penicillins and cephalosporins is -lactamase mediated hydrolysis of the -lactam ring, resulting in inactivation of the antibiotic.