What r antibiotics not effective against cold and flu
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Cold and flu are viral disease-----=
Antibiotics interfere with the normal activities of ribosomes in prokaryotic cell by preventing translation of cell's genetic code into proteins. Without proteins , the cell has no enzymes and no chemical reactions. A prokaryotic cell treated with an antibiotic soon dies.The ribosomes of eukaryotic cells, on the other hand, are not adversely affected by antibiotics.
A virus has no ribosomes of it's own. During a viral infection, the virus uses the ribosomes within its host cell----- a human body cell, for example----- for translation of its genes into viral proteins. Consequently, an antibiotic ( e.g., penicillin, streptomycin, tetracycline) has no effect on the progress of a viral infection in human cells.
Antibiotics interfere with the normal activities of ribosomes in prokaryotic cell by preventing translation of cell's genetic code into proteins. Without proteins , the cell has no enzymes and no chemical reactions. A prokaryotic cell treated with an antibiotic soon dies.The ribosomes of eukaryotic cells, on the other hand, are not adversely affected by antibiotics.
A virus has no ribosomes of it's own. During a viral infection, the virus uses the ribosomes within its host cell----- a human body cell, for example----- for translation of its genes into viral proteins. Consequently, an antibiotic ( e.g., penicillin, streptomycin, tetracycline) has no effect on the progress of a viral infection in human cells.
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Antibiotics are not effective against common cold because antibiotics are effective against bacteria and other non- viral pathogens as they block their some of their bio-synthetic pathways without affecting human beings. However, viruses of common cold do not have their metabolic machinery.
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