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Q.31 The branch of biology that involves creation of small living organisms like mycoplasma etc. is called as : l. Biotechnology 2. Systems biology 3. Chemical biology 4. Synthetic biology […]

Q.30 The acid – fastness of mycobacteria is due to : 1. Presence of mycolic acids in cell wall 2. Presence of peptidoglycan in the cell wall 3. Presence of […]

Q.29 Rifampicin inhibits I. Beta subunit of prokaryotic RNA polymerase 2. Beta subunit of prokaryotic DNA polymerase 3. All eukaryotic and prokaryotic polymerases 4. RNA dependent DNA polymerase Rifampicin specifically […]

Q.28 The amino acid in renal tubular cells that forms ammonia, which is finally excreted as NH4+ is: Aspartate Glutamate Asparagine Glutamine Glutamine is the primary amino acid in renal […]

Q.27 Which ofthe following are involved in buffering our blood system ? 1. Bicarbonate Phosphate buffers 2. Tris Hel buffer 3. MOPs buffer 4. Calcium/ Magnesium buffers The primary buffers […]

Q.26 Gmelin’s test and Van den Bergh reaction are used for : I. identification of bilimbin in serum and urine. respectively. 2. identification of in serum only, 3. identification of […]

Q.25 The most abundant enzyme on Earth is l. Carbonic anhydrase 2. Ribulose l, 5-bisphosphate carboxylase/oxygenase. 3. Acetylcholine esterase 4. Urease Ribulose 1,5-bisphosphate carboxylase/oxygenase (RuBisCO) is the most abundant enzyme on […]

Q.24 Identifr the statement about Penicillin. I. It is an m•eversible inhibitor 2. It targets glycopeptide transpeptidase 3. It consists of a beta-lactam ring plus proline 4. It forms covalent […]

Q.23 Km of an enzyme-catalysed reaction is: Substrate concentration at which reaction rate is half of the maximum. Product concentration at which reaction rate is half of the maximum. Substrate […]

Q.22 The catalytic efficiency of an enzyme refers to: Kcat Km Kcat / Km Km / Kcat The correct answer is Kcat / Km. This ratio measures an enzyme’s catalytic efficiency, […]