WorksheetsAntibiotics - Post Test
Total questions: 8
Worksheet time: 9mins
What are bacterial cell walls made of?
Glycerophospholipids
Peptidoglycans
Phospholipids
Chloramphenicol
Which enzymes are secreted by the bacterial cell wall to make small holes?
(a)
Why does penicillin and other antibiotics not affect viruses?
They don't have cell walls.
They don't have cells.
Neither of the above.
Both of the above.
What are bacteria which are sensitive to an antibiotic called?
Vulnerable
Resistant
Susceptible
Immune
What is a tube forms between two bacteria to allow movement of DNA called?
(a)
Does misuse of of antibiotics have any consequences?
Yes, it does.
No, not necessarily.
The data in the table shows deaths due to Staphylococcus aureus from 1997 to 2005.
Methicillin is an antibiotic that is used to treat S. aureus infections. MRSA is methicillin-resistant S. aureus.
Which statement is not supported by this data?
S. aureus will always cause humans to die.
Resistant strains of MRSA are becoming more common.
MRSA is more likely to lead to death than S. aureus.
More people have become infected with MRSA over time.
Some animals have evolved to produce small peptides called cathelicidins. These peptides have a bactericidal effect. They are able to attach to lipids in the bacterial membrane, thereby weakening them.
Synthetic versions of the cathelicidins have been produced. These can be used to treat infections that have become resistant to antibiotics like tetracycline.
1. The only way a bacterium could develop resistance to it is by altering all the lipids in its membranes.
2. Cathelicidins could be used instead of tetracycline, allowing tetracycline resistance to be reduced.
3. Cathelicidins are synthetic so bacteria can never become resistant to them.
4. Cathelicidins could be used to kill multidrug-resistant strains of bacteria, for which there are no currently effective antibiotics.
Which pair of statements explain how these peptides can help in the fight against antibiotic resistance?
1 and 3
1 and 4
2 and 3
2 and 4
