Enzymes - Mock Test 41

Question 401

In the biosynthesis of triglycerides from glycerol 3-phosphate and acyl-CoA, the first intermediate formed is?

A) 2-Monoacylglycerol B) 1, 2-Diacylglycerol C) Lysophosphatidic acid D) Phosphatidic acid

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Question 402

The glycerol for fatty acid esterification in adipocytes is?

A) For the most part, derived from glucose B) Obtained primarily from phosphorylation of glycerol by glycerol kinase C) Formed from gluconeogenesis D) Formed from glycogenolysis

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Question 403

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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Question 404

Conversion of fatty acyl-CoA to an acylCoA derivative having 2 more carbon atoms involves as acetyl donar?

A) Acetyl-CoA B) Succinyl-CoA C) Propionyl-CoA D) Malonyl-CoA

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Question 405

The rate limiting reaction in the lipogenic pathway is?

A) Acetyl-CoA carboxylase step B) Ketoacyl synthase step C) Ketoacyl reductase step D) Hydratase step

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Question 406

Carboxylation of acetyl-CoA to malonylCoA requires the enzyme?

A) Acetyl-CoA carboxylase B) Pyruvate carboxylase C) Acetyl transacylase D) Acyl CoA-synthetase

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Question 407

In fatty acids synthase of both bacteria and mammals, ACP (acyl carrier protein) contain the vitamin?

A) Thiamin B) Pyridoxine C) Riboflavin D) Pantothenic acid

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Question 408

The main source of reducing equivalents (NADPH) for lipogenesis is?

A) Pentose phosphate pathway B) Citric acid cycle C) Glycolysis D) Glycogenolysis

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Question 409

The fatty acid synthase complex catalyses?

A) 4 sequential enzymatic steps B) 6 sequential enzymatic steps C) 7 sequential enzymatic steps D) 8 sequential enzymatic steps

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Question 410

The protein, which is in fact a multifunctional enzyme complex in higher organism is?

A) Acetyl transacylase B) Malonyl transacylase C) 3-Hydroxy acyl-ACP dehyratase D) Fatty acid synthase

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