SAS 9: Fatty Acid Metabolism Quiz

Which of the following statements about fatty acid oxidation is TRUE?

• It occurs in the cytoplasm

• It produces acetyl-CoA, NADH, and FADH₂

• It requires insulin for activation

• It directly generates glucose

What enzyme activates fatty acids before they enter β-oxidation?

• Acetyl-CoA carboxylase

• Fatty acyl-CoA synthetase

• Lipase

• Carnitine acyltransferase II

The process of converting acetyl-CoA into fatty acids is known as:

• Lipolysis

• Lipogenesis

• β-oxidation

• Ketogenesis

During prolonged fasting, which molecule accumulates and leads to ketone body formation?

• Pyruvate

• Oxaloacetate

• Acetyl-CoA

• Lactate

The main site of lipogenesis in humans is the:

• Skeletal muscles

• Brain

• Liver and adipose tissue

• Mitochondria of red blood cells

Which coenzyme is required for fatty acid synthesis?

• FAD

• NADPH

• NADH

• ATP

Which of the following best describes the role of carnitine?

• Catalyzes lipolysis

• Transports fatty acids into mitochondria

• Synthesizes triglycerides

• Regulates insulin secretion

The first step in β-oxidation involves:

• Hydration of the double bond

• Oxidation of fatty acyl-CoA

• Cleavage of acetyl-CoA

• Reduction of NAD⁺

Which condition results from excessive production of ketone bodies?

• Glycogenesis

• Ketoacidosis

• Lipodystrophy

• Hyperglycemia

What hormone promotes lipolysis?

• Insulin

• Glucagon

• Estrogen

• Oxytocin