how do we beat bacteria
Answers
Answer:
We beat bacteria by using specialized products
With great difficulty. Bacteria are incredibly good at surviving many different environmental and chemical strains.
Take antibiotics for example. Antibiotics work by stopping key roles in the bacterial cell that allows it to grow and reproduce (maybe effect DNA replication or the strength of the cell wall). However, when people do not take a full prescription of antibiotics as they think they feel better again they are actually giving the bacteria a chance to mutate so that they are no longer killed by the antibiotic. In effect we are selecting for the strongest bacteria that can survive the antibiotic. There are many survival mechanism the bacteria could use (e.g. make a pump to remove the antibiotic from the cell or altering proteins so the antibiotic no longer binds to them). This population of antibiotic resistant bacteria will then spread as they can now live in antibiotic conditions that others cannot. Over a number of years you will find that these antibiotic resistant bacteria become the norm.
To get round this you can either create new antibiotics, which is possible although difficult. Last year a new type of antibiotic was discovered in marine life that has been shown to kill MRSA. We then just have to hope that this antibiotic is used properly otherwise in the future it too will become useless.
Or there is the possibility of using bacteriophage. These are viruses that specifically target bacteria (much like how a cold acts on us). The phage enter a specific bacterial cell and kill it.
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