Explain why many antibiotics are only effective against cells that are actively growing and reproducing?
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Understanding Biofilms - Bacteriality
In many cases, the activation of these genes is required for synthesis of the ... “ We were surprised to find that cells growing in chambers of all sorts of shapes ... .. The catch is that antibiotics are only effective against biofilms if ... . so that the cells of the immune system can actively combat biofilm bacteria, t... |
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ANTIBIOTICS.
Penicillin targets peptidoglycan, a substance found only in prokaryotic cells. ... 2). the general microbial group they act against: antibacterial, antifungal, ... Penicillin is one of many antibiotics in a class of antibiotics termed beta-lactam antibiotics. ... . and inhibits the formation of peptide bonds in the growing polpeptide cha... |
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Phil Stewart, PhD
They differentiate so cells of the same species kind of spin off into different ... own defenses that are usually very effective at dispatching microbial interlopers. ... way for bacteria to sense their neighbors and how many of them are banded together. ... .. Most of the antibiotics we have probably will only work on activelygrowing ... |
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Many people have called for the destruction of these supplies before someone ... and protein, and replicate only within a living cell of the correct host species. ... However, each type of virus has a limited range of host cells. ... also cross the placenta of an infected female mammal and infect her growing baby. |
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See Yeast Cells (Go to yeasts and molds at the bottom of the site and click on yeast) ... malaria; vaccine against diphtheria and resurfacing from the USSR are examples. ... Capsule - Gelatinous covering around many microorganisms, soluble in ... . Actively growing are more susceptible than older cells; actively metabolizing ... |
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After decades without the introduction of new antibiotics, several candidates ... systems improved significantly in many parts of the world since Koch's times. ... . Macrophages operate as prime defense cells against microbial intruders ... .. the host is actively growing and hence can provide wake-up signals to ... . |
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Excess fluid that leaks out of capillaries to bathe the body's cells is collected by the ... These necessary actions, however, are only part of the system's vitally ... It is the body's main line of defense against foreign invaders such as bacteria and viruses. ... with a virus to prevent that virus from reproducing in nearb... |