Important Science Question for RRB JE. We covered all the Important Science Question for RRB JE in this post for free so that you can practice well for the exam.
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Important Science Question for RRB JE for Students
The analyte is used in the form of a solution in flame photometry because it should undergo.
a) Evaporation
b) Condensation
c) Nebulisation
d) Precipitation
Option c – Nebulisation
Isoniazid is a primary antitubercular agent.
a) Requires pyridoxine supplementation
b) Causes ocular complications that are reversible if the drug is discontinued
c) Is ototoxic and nephrotoxic
d) Should never be used due to hepatotoxic potential
Option a – Requires pyridoxine supplementation
The mechanism of action of Paclitaxel is.
a) Bind to DNA through intercalation between specific bases and block the synthesis of new RNA or DNA, causing DNA strand scission
b) Mitotic spindle poison through the enhancement of tubulin polymerization
c) Competitive partial agonist of inhibitor of estrogen and binds to estrogen receptors
d) S-Phase specific antimetabolite that is converted by dioxygenase to the 5 mononucleotide
Option b – Mitotic spindle poison through the enhancement of tubulin polymerization
The mechanism of antiparasitic action of Mebendazole and thiabendazole involves.
a) Stimulation of acetylcholine receptors at neuromuscular junctions
b) Inhibition of dihydrofolate reductase
c) Interference with microtubule synthesis and assembly
d) Block thiamine transport
Option a – Stimulation of acetylcholine receptors at neuromuscular junctions
An agent used in Prinzemetal angina has spasmolytic action which increases coronary blood supply.
a) Nitroglycerine
b) Nifedipine
c) Timolol
d) Isosorbide mononitrate
Option a – Nitroglycerine
BMR is dependent upon.
a) Body weight
b) Surface area
c) Amount of adipose Tissue
d) Amount of lean body mass
Option b – Surface area
The site of ADH action is.
a) Proximal tubules
b) Loop of Henle
c) Vasa recta
d) Collecting tubules
Option d – Collecting tubules
The starting material for the synthesis of ALPRAZOLAM is.
a) 3-amino-5-bromoacetophenone
b) 2-amino-5-chlorobenzophenone
c) 2-amino-5-bromoacetophenone
d) 3-amino-5-chlorobenzophenone
Option b – 2-amino-5-chlorobenzophenone
A new drug delivery system that is composed of phospholipids that spontaneously form multilamellar concentric bilayer vesicles with layers of aqueous media separating the lipid layers.
a) Prodrugs
b) Liposomes
c) Osmotic pumps
d) Nanoparticles
Option b – Liposomes
A metabolite of SPIRONOLACTONE is.
a) Aldosterone
b) Canrenone
c) Corticosterone
d) Pregnenolone
Option b – Canrenone
We covered all the important science question for rrb je above in this post for free so that you can practice well for the exam.
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