What are antibiotics how do they work how penicillin is effective to control bacteria disease? class 9th
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Answers
Answer:
Antibiotics are used to treat or prevent some types of bacterial infection. They work by killing bacteria or preventing them from spreading.
Antibiotics work by blocking vital processes in bacteria, killing the bacteria or stopping them from multiplying. This helps the body's natural immune system to fight the bacterial infection. Different antibiotics work against different types of bacteria.
Penicillin is an effective drug to combat bacterial infections because it targets bacteria-specific proteins and has no effect on human proteins. When a bacterium divides, penicillin prevents it from reforming a new cell wall, and the two daughter cells “pop”.
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Answer:
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Explanation:
Antibiotics commonly block biochemical pathways important for bacteria.Many bacteria for example make a cell wall to protect themselves. The antibiotic penicillin blocks the bacterial processes that build the cell wall. As a result the growing bacteria become unable to make cell wall and die easily. It will have this effect on any species of bacteria that use such processes for making cell walls . Many antibiotics work against many species of bacteria rather than simply working against one.