3) Tetracycline formed by:
Anonymous Quiz
42%
a) Shikimic acid pathway.
48%
b) Acetate malonate pathway.
10%
c) Mevalonic acid pathway.
5) In screening for antibiotics treating the soil sample with chemical to inhibit all bacteria and fungi.
Anonymous Quiz
61%
T
39%
F
6) Chemical methods for detection of antibiotics on chromatogarm is impossible.
Anonymous Quiz
71%
T
29%
F
7) Lichens have bacteriostatic and antifungal properties due to prescence of alliine, a sulphur-containing amino acid.
Anonymous Quiz
75%
T
25%
F
8) Antibiotics are produced industrially by a process of fermentation where the source microorganism is grown in large containers.
Anonymous Quiz
74%
T
26%
F
9) The extraction of antibiotic is easier if the antibiotic is:
Anonymous Quiz
37%
a) Soluble in water.
63%
b) Soluble in organic solvent.
10) Example of antibiotic that inhibits the protein synthesis is:
Anonymous Quiz
20%
a) Penicillins.
17%
b) Rifampin.
63%
c) Chloramphenicol.
12) Basic structure of penicillin consist of thiazolidine and lactam ring.
Anonymous Quiz
86%
T
14%
F
15) Ampicillin differs from penicillin G only by the presence of an amino group in its structure.
Anonymous Quiz
68%
T
32%
F
16) Floxacillin is effective against methicillin-resistant Staphylococcus aureus.
Anonymous Quiz
53%
T
47%
F
18) ........ is capable of treating
Stenotrophomonas maltophilia infections.
Stenotrophomonas maltophilia infections.
Anonymous Quiz
39%
a) Carbenicillin
25%
b) Ticarcillin
36%
c) Meticillin
1) Cephems are subgroup of β-lactam antibiotics include:
Anonymous Quiz
45%
a) Cephalosporins.
9%
b) Cephamycins.
46%
c) Both of them.
2) The gram negative antimicrobial properties of cephalosporins increase in each new generation.
Anonymous Quiz
95%
T
5%
F