Lipid Metabolism

Which of the following is an important intermediate in the biosynthesis of fatty acids?

• Carnitine

• Cholesterol

• Glucose

• Malonyl-CoA

Which of the following enzymes is most important in regulating FA synthesis?

• Acetyl-CoA carboxylase

• Acetyl transacetylase

• Enoyl reductase

• Hydratase

Which process generates the most ATP?

• Citric acid cycle

• Fatty acid oxidation

• Pentose phosphate pathway

• Glycogenolysis

Which of the following generates most of the reducing equivalents utilized for FA synthesis?

• Pentose phosphate pathway

• Glycolysis

• Citric acid cycle

• Mitochondrial malate dehydrogenase

Which enzyme catalyzes the only step in FA oxidation that requires energy?

• Acyl-CoA dehydrogenase

• Acyl-CoA synthetase

• L(+)-3-hydroxyacyl CoA dehydrogenase

• Thiolase

Which of the following is NOT used for FA synthesis?

• ATP

• FADH2

• NADPH

• Cobalamin (Vitamin B12)

A fatty acid with 18 carbon will undergo how many rounds of beta oxidation?

• 9

• 8

• 7

• 6

A fatty acid with 14 carbon will produce how many Acetyl-CoA?

• 14

• 7

• 6

• 0

What is the molecular basis of the statement "fats burn in the flames of carbohydrates"?

• Fatty acids and glucose are broken down simultaneously.

• Fatty acid oxidation require ATP from the ETC.

• Acetyl CoA is oxidized completely in the presence of oxaloacetate from TCA cycle.

• Oxidation of 1 gram of fatty acid gives more energy than 1 gram of glucose.

Which of the following can allosterically activate Acetyl-CoA carboxylase?

• ATP

• Citrate

• Malonyl CoA

• Carnitine