Transcript Cloze to the end………

14th September, 2012
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
I would never take
antibiotics, I think
they are really bad;
they should be
completely banned
I think we should use
antibiotics for everything,
they are great for making
us better, no matter what
is wrong with us
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
I’ll use antibiotics, but
only if it’s really
necessary, and I always
make sure I take the
full course.
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
Antibiotic
Penicillin
How it works
Breaks down cell walls
Erythromyi Stops protein synthesis
Neomycin Stops protein synthesis
Vancomyci Stops protein synthesis
Ciproflaxin Stops DNA replication
Cloze to the
end………
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.
bacteria
vancomycin
ciproflaxin
1928
Cloze to the
end………
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.
bacteria
vancomycin
ciproflaxin
1928
Cloze to the
end………
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.
bacteria
vancomycin
ciproflaxin
1928
Cloze to the
end………
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.
bacteria
vancomycin
ciproflaxin
1928
Cloze to the
end………
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.
bacteria
vancomycin
ciproflaxin
1928
Cloze to the
end………
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.
bacteria
vancomycin
ciproflaxin
1928
Cloze to the
end………
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.
bacteria
vancomycin
ciproflaxin
1928
Cloze to the
end………
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.
bacteria
vancomycin
ciproflaxin
1928
Cloze to the
end………
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.
bacteria
vancomycin
ciproflaxin
1928