L4

Question 1

Gentamicin plus penicillin

Answer 1

Synergistic

Question 2

Tetracycline and penicillin

Answer 2

Antagonistic

Question 3

Synthetic drugs

Answer 3

sulfa drugs

Question 4

Antibiotics :drugs produced by microorganisms

Answer 4

penicillin

Question 5

Semisynthetic

Answer 5

Ampicillin

Question 6

Microorganisms that produce antibiotics

Answer 6

Streptomyces & bacillus

Question 7

Microorganisms that produce antifungal

Answer 7

Penicillium & Cephalosporium

Question 8

Broad spectrum antibiotics

Answer 8

Amoxicillin, Ampicillin, sulphonamides, trimethoprim, tetracycline

Question 9

Narrow spectrum antibiotics (gram positive)

Answer 9

penicillin , macrolides

Question 10

Narrow spectrum antibiotics (gram negative)

Answer 10

Nalidixic acid, polymyxin

Question 11

Bactericidal

Answer 11

Penicillins, cephalosporin, aminoglycosides

Question 12

Bacteriostatic

Answer 12

tetracycline, chloramphenicol, sulphonamides.

Question 13

Inhibition of cell wall synthesis

Answer 13

β- lactam drugs, Vancomycin, Cycloserine, Bacitracin

Question 14

inhibit the synthesis of mycolic acids

Answer 14

Isoniazid & Ethambutol

Question 15

Inhibition of protein synthesis

Answer 15

Chloramphenicol, erythromycin, tetracyclines

Question 16

antifungal drugs affect the ergosterol in the cytoplasmic membrane of fungi

Answer 16

Amphotericin B and Nystatin

Question 17

antibacterial drugs that disrupt the cytoplasmic membrane.

Answer 17

Polymyxins (Colistin) & Lipopeptides (Daptomycin)

Question 18

Inhibit DNA synthesis

Answer 18

Quinolones, Nalidixic acid

Question 19

Inhibit the action of bacterial DNA gyrases

Answer 19

topoisomerases

Question 20

Inhibit RNA synthesis

Answer 20

Rifampin

Question 21

Inhibition of synthesis of essential metabolites (Antimetabolites)

Answer 21

Sulfonamides & Trimethoprim

Question 22

inhibit the synthesis of mycolic acids found in the cell walls of Mycobacterium species

Answer 22

Isoniazid & Ethambutol