biochemistry MCQs – Page 12

Practise focused biochemistry questions with marked answers for exam preparation and subject revision.

biochemistry Mcqs

221. End product of purine metabolism is______________?
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A. Creatinine

B. Xanthine

C. Phosphates

D. Uric acid

222. Transcription is the synthesis of____________?
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A. Double stranded complimentary copy of DNA

B. Complimentary copy of RNA

C. Single stranded complimentary copy of DNA

D. COmplimentary copy of rRNA

223. The following is not a carrier protein________________?
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A. Haptoglobulin

B. Cerruloplasmin

C. Transferrin

D. Transcobalamine

224. HMG CoA reductase is inhibited by_____________?
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A. Clofibrate

B. cholestyramine

C. Gemfibrosil

D. Lovastatin

225. Which of the following is a derived a derived protein_____________?
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A. Lactalbumin

B. Peptones

C. Prolamines

D. Protamines

226. In the body, metabolism of 10 g of protein would produce approximately____________?
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A. 410 Kcal

B. 41 Kcal

C. 4100 Kcal

D. 1 Kcal

227. Albinism is a genetic disease that results in incomplete metabolism of______________?
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A. Cystine

B. Tyrosine

C. Histidine

D. Alanine

228. The human plasma lipoprotein containing the highest percentage of triacylglycerol by weight is______________?
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A. Chylomicrons

B. LDL

C. HDL

D. VLDL

229. Detoxification or protective synthesis occurs by____________?
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A. Oxidation

B. Any of the above

C. Reduction

D. Conjugation

230. Highest binding of iron in plasma is seen with___________?
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A. Hemoglobin

B. Ceruloplasmin

C. Ferritin

D. Transferrin

231. The class of amino acids that contains only non essential amino acids is_______________?
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A. Acidic

B. Aromatic

C. Basic

D. Branched chain

232. The nitrogen of the body is supplied by______________?
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A. Triacyl glycerol

B. Glucose

C. Lipids

D. Proteins

233. At PH 7 the binding of 2,3 DPG to hemoglobin occurs at which site ?
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A. Sulphydryl group

B. Amino terminal

C. Carboxy terminal

D. Histidine

234. Thyroxine and catecholamines are derived from_____________?
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A. Tyrosine

B. Alanine

C. Tryptophan

D. Leucine

235. Ketone bodies are by products of metabolism of_____________?
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A. Fat

B. Protein

C. Carbohydrate

D. All of the above

236. Which is not seen in HMG CoA pathway ?
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A. Mevalonate

B. Pyruvate

C. Cholesterol

D. Acetyl CoA

237. The best technique useful for initial viral load estimation is________________?
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A. Electrophoresis

B. Widal test

C. Real time PCR

D. Immunofluoresence

238. The sigma subunit of prokaryotic RNA polymerase_______________?
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A. Specifically recognizes the promoter site

B. Is inhibited by a-amanitin

C. Binds the antibiotic Rifampicin

D. Is part of the core enzyme

239. Which of the following amino acids is quickly converted to tyrosine ?
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A. Glycine

B. Phenylalanine

C. Arginine

D. Leucine

240. Free radicals are chemical species which have______________?
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A. Single unpaired electron in an outer orbit

B. Double paired electron in an outer orbit

C. Double unpaired electron in an outer orbit

D. Single paired electron in an outer orbit

Showing 221 to 240 of 448 mcqs