Antibiotics

Question 1

What are antibiotics?

Answer 1

something used to kill / control / prevent reproduction of bacteria

Question 2

What does bacteria have?

Answer 2

cell walls (peptidoglycan)
has different ribosomes (small)

antibiotics can target these differences

Question 3

What can antibiotics stop?

Answer 3

ribosomes - no proteins are translated - die

cell wall formation - weak cell walls - absorb h2o by osmosis - burst

Question 4

When was penicilin discovered?

Answer 4

first antibiotic discovered in mid 20th century by alexander flamming

Question 5

What is penicilin made by?

Answer 5

fungus called penicillium

Question 6

What is penicilin effective against?

Answer 6

all bacteria and is widely used

Question 7

What has bacteria developed?

Answer 7

resistance through penicilin

Question 8

What are the two bacterias which developed resistance?

Answer 8

MRSA

Clostiduim dificule

Question 9

How does antibiotic resistance occur?

Answer 9

mutation (rare)

strong selection pressure

only those with mutation will survive and reproduce