Antibiotics LO: We will be able to state how an antibiotic works and why it can only work with some illnesses and we will describe how bacteria can become resistant to antibiotics and the problems this causes. STM: Creative Thinkers 14 th September, 2012

I think we should use antibiotics for everything, they are great for making us better, no matter what is wrong with us I’ll use antibiotics, but only if it’s really necessary, and I always make sure I take the full course. I would never take antibiotics, I think they are really bad; they should be completely banned I sometimes take antibiotics, but I quite often forget to take all of them, but that doesn’t matter, as long as I feel better again

Antibiotics are substances that kill bacteria or prevent their growth. They do not work against viruses.

The first antibiotic - penicillin - was discovered in 1928 by Alexander Fleming.

He noticed that some bacteria he had left in a petri dish had been killed by naturally occurring penicillium mould.

Since the discovery of penicillin, many other antibiotics have been discovered or developed.

Most antibiotics used in medicine have been altered chemically to make them more effective and safer for humans.

Bacterial strains can develop resistance to antibiotics. This happens because of natural selection. In a large population of bacteria, there may be some cells that are not affected by the antibiotic. These cells survive and reproduce, producing even more bacteria that are not affected by the antibiotic.

MRSA is methicillin-resistant staphylococcus aureus. It is very dangerous because it is resistant to most antibiotics. It is important to avoid over-use of antibiotics, so we can slow down, or stop, the development of other strains of resistant bacteria

AntibioticHow it works PenicillinBreaks down cell walls ErythromyinStops protein synthesis NeomycinStops protein synthesis VancomycinStops protein synthesis CiproflaxinStops DNA replication

Penicillin was the first antibiotic discovered. It was discovered in 1928 by Alexander Fleming. Antibiotics kill bacteria or stop them from growing. Examples of antibiotics are penicillin, which breaks down cell walls, vancomycin, neomycin, erythromycin, these stop protein synthesis and ciproflaxin, which stops DNA replication. Cloze to the end……… bacteria ciproflaxin 1928 vancomycin growing penicillin antibiotic eythromycin

Penicillin was the first antibiotic discovered. It was discovered in 1928 by Alexander Fleming. Antibiotics kill bacteria or stop them from growing. Examples of antibiotics are penicillin, which breaks down cell walls, vancomycin, neomycin, erythromycin, these stop protein synthesis and ciproflaxin, which stops DNA replication. Cloze to the end……… bacteria ciproflaxin 1928 vancomycin growing penicillin antibiotic eythromycin

Penicillin was the first antibiotic discovered. It was discovered in 1928 by Alexander Fleming. Antibiotics kill bacteria or stop them from growing. Examples of antibiotics are penicillin, which breaks down cell walls, vancomycin, neomycin, erythromycin, these stop protein synthesis and ciproflaxin, which stops DNA replication. Cloze to the end……… bacteria ciproflaxin 1928 vancomycin growing penicillin antibiotic eythromycin

Penicillin was the first antibiotic discovered. It was discovered in 1928 by Alexander Fleming. Antibiotics kill bacteria or stop them from growing. Examples of antibiotics are penicillin, which breaks down cell walls, vancomycin, neomycin, erythromycin, these stop protein synthesis and ciproflaxin, which stops DNA replication. Cloze to the end……… bacteria ciproflaxin 1928 vancomycin growing penicillin antibiotic eythromycin

Penicillin was the first antibiotic discovered. It was discovered in 1928 by Alexander Fleming. Antibiotics kill bacteria or stop them from growing. Examples of antibiotics are penicillin, which breaks down cell walls, vancomycin, neomycin, erythromycin, these stop protein synthesis and ciproflaxin, which stops DNA replication. Cloze to the end……… bacteria ciproflaxin 1928 vancomycin growing penicillin antibiotic eythromycin

Penicillin was the first antibiotic discovered. It was discovered in 1928 by Alexander Fleming. Antibiotics kill bacteria or stop them from growing. Examples of antibiotics are penicillin, which breaks down cell walls, vancomycin, neomycin, erythromycin, these stop protein synthesis and ciproflaxin, which stops DNA replication. Cloze to the end……… bacteria ciproflaxin 1928 vancomycin growing penicillin antibiotic eythromycin

Penicillin was the first antibiotic discovered. It was discovered in 1928 by Alexander Fleming. Antibiotics kill bacteria or stop them from growing. Examples of antibiotics are penicillin, which breaks down cell walls, vancomycin, neomycin, erythromycin, these stop protein synthesis and ciproflaxin, which stops DNA replication. Cloze to the end……… bacteria ciproflaxin 1928 vancomycin growing penicillin antibiotic eythromycin

Penicillin was the first antibiotic discovered. It was discovered in 1928 by Alexander Fleming. Antibiotics kill bacteria or stop them from growing. Examples of antibiotics are penicillin, which breaks down cell walls, vancomycin, neomycin, erythromycin, these stop protein synthesis and ciproflaxin, which stops DNA replication. Cloze to the end……… bacteria ciproflaxin 1928 vancomycin growing penicillin antibiotic eythromycin

Penicillin was the first antibiotic discovered. It was discovered in 1928 by Alexander Fleming. Antibiotics kill bacteria or stop them from growing. Examples of antibiotics are penicillin, which breaks down cell walls, vancomycin, neomycin, erythromycin, these stop protein synthesis and ciproflaxin, which stops DNA replication. Cloze to the end……… bacteria ciproflaxin 1928 vancomycin growing penicillin antibiotic eythromycin