A coenzyme containing non aromatic hetero ring is (A) ATP (B) NAD (C) FMN (D) Biotin

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Answer :

Answer :  D

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Description : A coenzyme containing aromatic hetero ring is (A) TPP (B) Lipoic acid (C) Coenzyme Q (D) Biotin

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Description : Sulphur containing coenzyme is (A) NAD (B) FAD (C) Pyridoxal phosphate (D) Biotin

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Description : The co-enzyme containing an automatic hetero ring in the structure is (A) Biotin (B) TPP (C) Sugar Phosphate (D) Co-enzyme

Last Answer : Answer : C

Description : A cofactor required for the conversion of acetyl-CoA to malonyl-CoA in extramitochondrial fatty acid synthesis is (A) Biotin (B) FMN (C) NAD (D) NADP

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Description : Rotenone inhibits the respiratory chain at (A) FMN → coenzyme Q (B) NAD → FMN (C) Coenzyme Q → cyt b (D) Cyt b → Cyt c1

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Description : Reducing equivalents from pyruvate enter the mitochondrial respiratory chain at (A) FMN (B) NAD (C) Coenzyme Q (D) Cyt b

Last Answer : Answer : B

Description : Vitamin B2 is component of coenzyme: (A) Pyridoxal phosphate (B) TPP (C) NAD (D) FMN/FAD

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Description : The coenzyme involved in dehydrogenation of 3-hydroxy acyl-CoA is (A) FAD (B) FMN (C) NAD (D) NADP

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Description : In β-oxidation, the coenzyme for acyl-CoA dehydrogenase is (A) FMN (B) NAD (C) NADP (D) FAD

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Description : The coenzyme not involved in the formation of acetyl-CoA from pyruvate is (A) TPP (B) Biotin (C) NAD (D) FAD

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Description : An example of hydrogen transferring coenzyme is (A) CoA (B) NAD+ (C) Biotin (D) TPP

Last Answer : Answer : B

Description : The coenzyme required for conversion of pyruvate to oxaloacetate is (A) FAD (B) NAD (C) TPP (D) Biotin

Last Answer : Answer : D

Description : Transaminase activity needs the Coenzyme: (A) ATP (B) B6-PO4 (C) FADT (D) NAD+

Last Answer : Answer : B

Description : Acyl-CoA dehydrogenase converts Acyl CoA to α-β unsaturated acyl-CoA in presence of the coenzyme: (A) NAD+ (B) NADP+ (C) ATP (D) FAD

Last Answer : Answer : D

Description : The transaminase activity needs the coenzyme: (A) ATP (B) B6 – PO4 (C) FAD+ (D) NAD+

Last Answer : Answer : B

Description : A coenzyme required for the synthesis of glycine from serine is (A) ATP (B) Pyridoxal phosphate (C) Tetrahydrofolate (D) NAD

Last Answer : Answer : C

Description : A molecule of CO2 is captured by biotin when it acts as coenzyme for carboxylation reaction. The carboxyl group is covalently attached to (A) A nitrogen (N1) of the biotin molecule (B) Sulphur of thiophene ring (C) α-Amino group of lysine (D) α-Amino group of protein

Last Answer : Answer : A

Description : Which of the following cofactors or their derivatives must be present for the conversion of acetyl CoA to malonyl CoA extramitochondrial fatty acid synthesis? (A) Biotin (B) FAD (C) FMN (D) ACP

Last Answer : Answer : A

Description : In purine biosynthesis ring closure in the molecule formyl glycinamide ribosyl-5- phosphate requires the cofactors: (A) ADP (B) NAD (C) FAD (D) ATP and Mg++

Last Answer : Answer : D

Description : Reduction of ribonucleotide diphosphates (NDPs) to their corresponding deoxy ribonucleotide diphosphates (dNDPs) involves (A) FMN (B) FAD (C) NAD (D) NADPH

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Description : A cofactor in the conversion of dihydroorotate to orotic acid, catalysed by the enzyme dihydroorotate dehydrogenase is (A) FAD (B) FMN (C) NAD (D) NADP

Last Answer : Answer : C

Description : Histamine is formed from histidine by the enzyme histidine decarboxylase in the presence of (A) NAD (B) FMN (C) HS-CoA (D) B6-PO4

Last Answer : Answer : D

Description : The sequence of the redox carrier in respiratory chain is (A) NAD—FMN—Q—cyt b—cyt c1—cyt c—cyt aa3 → O2 (B) FMN—Q—NAD—cyt b—cyt aa3—cyt c1— cyt c → O2 (C) NAD—FMN—Q—cyt c1—cyt c—cyt b—cyt aa3 → O2 (D) NAD—FMN—Q—cyt b—cyt aa3—cyt c—cyt c1 → O2

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Description : Isocitrate dehydrogenase can use __________ as a cofactor. (A) NAD+ only (B) NADP+ only (C) NAD+ or NADP+ (D) FMN and FAD

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Description : UDP glucose is converted to UDP glucurronate, a reaction catalysed by UDP glucose dehydrogenase requires (A) NAD+ (B) FAD (C) NADP (D) FMN

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Description : The hydrogen acceptor used in pentose phosphate pathway is (A) NAD (B) NADP (C) FAD (D) FMN

Last Answer : Answer : B

Description : In β−oxidation of fatty acids which of the following are utilized as co-enzymes? (A) NAD+ and NADP+ (B) FAD H2 and NADH + H+ (C) FAD and FMN (D) FAD and NAD+

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Description : In β-Oxidation of fatty acids, which of the following are utilized as coenzymes? (A) NAD+ and NADP+ (B) FADH2 and NADH + H+ (C) FAD and FMN (D) FAD and NAD+

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Description : Dehydrogenases involved in HMP shunt are specific for (A) NADP+ (B) NAD+ (C) FAD (D) FMN

Last Answer : A

Description : The oxidation of lactic acid to pyruvic acid requires the following vitamin derivative as the hydrogen carrier. (A) Lithium pyrophosphate (B) Coenyzme A (C) NAD+ (D) FMN

Last Answer : C

Description : Dehydrogenase enzymes of the hexose monophosphate shunt are (A) NAD+ specific (B) NADP+ specific (C) FAD specific (D) FMN specific

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Description : One of the site of phsosphorylation in mitochondrial respiratory chain is (A) Between FMN and coenzyme Q (B) Between coenzyme Q and cyt b (C) Between cytochrome b and cytochrome c1 (D) Between cytochrome c1 and cytochrome c

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Description : Pyruvate dehydrogenase contains all except (A) Biotin (B) NAD (C) FAD (D) CoA

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Description : Of Which warburg’s yellow enzyme contains as a prosthetic group? (A) Thiamine pyrophosphate (B) Biotin (C) NAD+ (D) Riboflavin-5-phosphate

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Description : Which one of the following cofactors must be utilized during the conversion of acetyl CoA to malonyl CoA? (A) TPP (B) ACP (C) NAD+ (D) Biotin

Last Answer : Answer : D

Description : The cofactor or its derivative required for the conversion of acetyl CoA to malonylCoA is (A) FAD (B) ACP (C) NAD+ (D) Biotin

Last Answer : Answer : D

Description : Carboxylation of acetyl—CoA to malonyl — CoA takes place in presence of (A) FAD+ (B) Biotin (C) NAD+ (D) NADP+

Last Answer : Answer : C

Description : Biotin is a coenzyme for (A) Pyruvate dehydrogenase (B) Pyruvate carboxylase (C) PEP carboxykinase (D) Glutamate pyruvate transminase

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Description : A coenzyme required in carboxylation reactions is (A) Lipoic acid (B) Coenzyme A (C) Biotin (D) All of these

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Description : A coenzyme required in transamination reactions is (A) Coenzyme A (B) Coenzyme Q (C) Biotin (D) Pyridoxal phosphate

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Description : Which of the following coenzyme takes part in hydrogen transfer reactions? (A) Tetrahydrofolate (B) Coenzyme A (C) Coenzyme Q (D) Biotin

Last Answer : Answer : C

Description : Biotin is a coenzyme for (A) Pyruvate carboxylase (B) Acetyl CoA carboxylase (C) Propionyl CoA carboxylase (D) All of these

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Description : Biotin is required as a coenzyme by (A) Anaerobic dehydrogenases (B) Decarboxylases (C) Aerobic dehydrogenases (D) Carboxylases

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Description : Biotin is a coenzyme of the enzyme (A) Carboxylase (B) Hydroxylase (C) Decarboxylase (D) Deaminase

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Description : The conversion of pyruvate to acetyl CoA and CO2 (A) Is reversible (B) Involves the participation of lipoic acid (C) Depends on the coenzyme biotin (D) Occurs in the cytosol

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Description : The following co-enzyme is needed for the oxidative decarboxylation of ketoacids: (A) NADP+ (B) TPP (C) Folate coenzyme (D) Biotin coenzyme

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Description : Reducing equivalents from succinate enter the mitochondrial respiratory chain at (A) NAD (B) Coenzyme Q (C) FAD (D) Cyt c

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Description : All the isoenzymes function with the coenzyme: (A) NADP+ (B) FAD (C) Lipoate (D) NAD+

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Description : A coenzyme present in phosphorylase is (A) NAD (B) Pyridoxal phosphate (C) Thiamin pyrophosphate (D) Coenzyme A

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Description : An examp le of group transferr ing coenzyme is (A) NAD+ (B) NADP+ (C) FAD (D) CoA

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