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Question
How do antibiotics cure disease?
Solution
Microorganisms have certain biochemical pathways which are needed for their survival; for example, respiration and enzyme synthesis. Antibiotics bind with the precursors required for these pathways and block them. In the absence of essential life processes, the microorganisms are killed. For example, penicillin kills a bacterium by blocking the cell wall formation in bacteria. Once the disease-causing organism is dead, there is no more spread of the disease and the patient starts recovering.
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