Chemicals that kill or inhibit the growth of bacteria.
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What do antibiotics treat?
Bacterial infections
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They are useful because...
They can usually target bacterial cells without damaging the human body cells.
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What was the first antibiotic invented?
Penicillin
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Name some limitations of using antibiotics
There are risks using antibiotics, such as, side effects and even severe allergic reactions in some people. Perhaps biggest risk is antibiotic resistance.
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what causes some bacteria to become to become naturally resistant to antibiotics?
Genetic mutations
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For the bacterium that are resistant they have a big advantage. It's better able to....
Survive in the host who's being treated with antibiotics to get rid of the infection, and so it lives longer and reproduces many more times.
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What is an allele?
An alternative version of a gene.
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what is not a problem with antibiotic resistance?
It has allowed for more bacteria and viruses that are potentially life-threatening to grow and spread throughout hospitals, making hospitals a hazardous place to catch a virus.
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MRSA stands for
meticillin-resistant Staphylococcus aureus.
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MRSA causes
serious wound infections and is resistant to several antibiotics, including meticillin.
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Clostridium difficile infects...
the digestive system, usually causing problems in people who have already been treated with antibiotics. It is thought that the harmless bacteria that are normally present in the digestive system are killed by the antibiotics.
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name 2 ways of overcoming the current problem of antibiotic resistance
Developing new antibiotics and modifying existing ones.
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What is not an example of a source of medicine?
Some infections can be cured using medications from the doctors.
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