11. For increased production of penicillin by fermentation, the pH is maintained between:
(a) 1 to 4
(b) 4.8 to 5.2
(c) 6.8 to 7.4
(d) 6 to 7
12. Newer insulins are:
(a) Acidic
(b) Neutral
(c) Alkaline
(d) Monomers
13. Which one of the following treatments should be instituted immediately in a child presenting to medical emergency with severe acute lead poisoning with signs and symptoms of encephalopathy?
(a) Succimer
(b) Penicillamine
(c) Deferoxamine
(d) EDTA
14. Which one of the following is not effective in the treatment of anaerobic infections?
(a) Clindamycin
(b) Erythromycin
(c) Metronidazole
(d) Chloramphenicol
15. The proteins which are ATP dependent pumps and facilitate the efflux of drug molecules from the cell are known as:
(a) Cytochrome P 450 3 A4
(b) P-glycoproteins
(c) Cytochrome P 450
(d) Carrier for active transport
16. Ion-exchange chromatography is used for the separation of:
(a) Aldehydes
(b) Aminoacids
(c) Fatty acids
(d) Hydrocarbons
17. Which one of the following techniques is used to mill camphor?
(a) Attrition
(b) Levigation
(c) Trituration
(d) Pulverization by intervention
18. Drying of blood products and enzyme based preparation is carried out by:
(a) Vacuum drying
(b) Fluidized bed drying
(c) Lyophilization
(d) Tunnel drying
19. The mode of action of ethylene oxide as a sterilization agent is by:
(a) Oxidation
(b) Reduction
(c) Alkylation
(d) Protein precipitation
20. The term used to describe unequal distribution of color on a tablet is:
(a) Chipping
(b) Mottling
(c) Double impression
(d) Lamination