Antibiotics and their Mode of Action

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Antibiotics and their Mode of Action

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following does not affect the activity of penicillin?
A
bile
B
hydrochloric acid
C
cysteine
D
sodium hydroxide
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Antibiotic produced by Streptomyces rimosus is .....
A
chlortetracycline
B
oxytetracycline
C
tetracycline
D
doxycycline
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following inhibits protein synthesis by combining with the 50S subunit ribosome?
A
Streptomycin
B
Tetracycline
C
Chloramphenicol
D
Penicillin
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Structurally all penicillins have only beta-lactam present in them.
A
True
B
False
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Tyrocidines are more effective against .....
A
Gram-positive organisms
B
Gram-negative organisms
C
Mycoplasmas
D
Spirochetes
There are 5 questions to complete.