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Year

BiochemistryCarbohydrate Metabolism

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Q2429. Substrate level phosphorylation occur in step catalysed by which of the following enzyme in TCA cycle?

A.Isocitrate dehydrogenase

B.Malate dehydrogenase

C.Aconitase

D.Succinate thiokinase

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NEET-PG

2012

Repeats: N/A

Forensic MedicineToxicology

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Q2430. In ETC, cyanide inhibits ?

A.Complex I

B.Cytochrome C oxidase

C.Complex IV

D.Complex III

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BiochemistryCarbohydrate Metabolism

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Q2431. NADPH via glycerophosphate shunt makes how many ATP?

A.1

B.2

C.3

D.4

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BiochemistryCarbohydrate Metabolism

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Q2432. Enzyme involved in oxidative phosphorylation ?

A.Pyruvate kinase

B.Succinyl CoA thiokinase

C.NADH dehydrogenase

D.None

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PsychiatryMood Disorders

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Q2433. Among the following, the maximum redox potential is for:

A.NADH/NAD

B.Succinate/Fumarate

C.Ubiquinone

D.Fe+3/ Fe+2

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BiochemistryCarbohydrate Metabolism

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Q2434. In ETC NADH generates -

A.1 ATPs

B.2 ATPs

C.3 ATPs

D.4 ATPs

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BiochemistryCarbohydrate Metabolism

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Q2435. In glycolysis, inorganic phosphate is used reaction, catalyzed by ?

A.Enolase

B.Pyruvate kinase

C.Glyceraldehyde-3-p dehydrogenase

D.Aldolase

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BiochemistryCarbohydrate Metabolism

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Q2436. True about glycolysis?

A.Hexokinase produce ATP

B.1 cycle produces 2 ATP

C.It produces directly 2 molecules of lactate

D.Aldolase produces irreversible polymerization

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BiochemistryCarbohydrate Metabolism

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Q2437. Enzymes of glycolysis are found in:

A.Cytosol

B.Cell membrane

C.Mitochondria

D.Ribososmes

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BiochemistryCarbohydrate Metabolism

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Q2438. The rate limiting step in glycolysis is catalyzed by?

A.Pyruvate kinase

B.Enolase

C.Glucokinase

D.Phosphofructokinase

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BiochemistryCarbohydrate Metabolism

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Q2439. Number of ATP molecules and NADH formed in each cycle of glycolysis ?

A.4 ATP, 2 NADH

B.2 ATP, 2 NADH

C.4 ATP, 4 NADH

D.2 ATP, 4 NADH

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BiochemistryLipid Metabolism

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Q2440. All are activated by insulin except ?

A.Lipoprotein lipase

B.Pyruvate kinase

C.Hormone sensitive lipase

D.Acetyl-CoA carboxylase

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BiochemistryNucleotide Metabolism

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Q2441. Nonsense codons bring about ?

A.Elongation of polypeptide chain

B.Pre-translational modificastion of protein

C.Initiation of protein synthesis

D.Termination of protein synthesis

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BiochemistryCarbohydrate Metabolism

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Q2442. ATP is consumed at which step of glycolysis

A.Enolase

B.Hexokinase

C.Pyruvate kinase

D.Isomerase

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BiochemistryCarbohydrate Metabolism

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Q2443. Methionine can entre the TCA cycle at which level?

A.Fumarate

B.Oxabacetate

C.Succinyl - CoA

D.Citrate

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PharmacologyCardiovascular Drugs

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Q2444. Rate limiting steps in TCA cycle ?

A.a–Ketoglutarate Succinyl CoA

B.Citrate - Isocitrate

C.Succinyl CoA 4 Succinate

D.Succinate - Fumarate

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BiochemistryCarbohydrate Metabolism

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Q2445. Rate limiting step in TCA cycle is catalyzed by -

A.a-ketoglotarate synthase

B.Fumarase

C.Aconitase

D.Thiokinase

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BiochemistryCarbohydrate Metabolism

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Q2446. Fluroacetate inhibits ?

A.Citrate synthetase

B.Aconitase

C.Succinate dehydrogenase

D.Alphaketoglutarate dehydrogenase

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BiochemistryCarbohydrate Metabolism

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Q2447. Inhibitors of glycolysis are all except ?

A.Fluoride

B.Fluoroacetate

C.Arsenite

D.Iodoacetate

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BiochemistryCarbohydrate Metabolism

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Q2448. The biosynthesis of the enzyme pyruvate carboxylase is repressed by ?

A.Insulin

B.Glucagon

C.Cortisol

D.Epinephrine

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