AntiBiotics

Question 1

Based on Preparations

Answer 1

I. Naturally occurring, e.g. from fungi, e.g. Penicillins, cephalosporins, erythromycin, tetracycline, chloramphenicol, and aminoglycosides, etc.

II. Synthetic, e.g., sulphonamides.

Question 2

Based on family

Answer 2

I. Penicillins
II. Cephalosporins
III. Sulphonamides 
IV. Tetracyclines 
V. Aminoglycosides 
VI. Macrolide

Question 3

Based on spectrum of activity

Answer 3

I. Narrow: Penicillins

II. Broad: ampicillins, tetracyclines

Question 4

Based on effect

Answer 4

I. Bacteriostatic: erythromycin, tetracycline, sulphonamide, etc.
II. Bactericidal: Penicillins, cephalosporins, etc.

Question 5

Based on their effect on Gram-positive or Gram-negative bacteria

Answer 5

I. Gram-positive bacteria: Penicillins, cephalosporins, erythromycin,
Bactrim, tetracycline, gentamicin, etc.
II. Gram-negative bacteria: penicillin acts on gonococci.