Biochemistry Quiz: Lipid Metabolism

In the oxidation of fatty acids, what two molecules are needed to initially activate a fatty

acid molecule?

• NADH and FADH2
• Glucose and Insulin
• Acetyl-CoA and ATP

• ATP and Coenzyme A (CoA)

Lipoproteins that transport triacylglycerols from intestinal cells to the bloodstream

are called

• VLDL
• LDL
• HDL
• Chylomicrons

Which of the following is not a product of triacylglycerol mobilization?

• No correct response

• ATP

• Glycerol
• Fatty acids

The major function of bile released during triacylglycerol digestion is to

• facilitate the formation of chyme

• act as an enzyme

• act as an emulsifier

• facilitate the digestion of protein

What is the intermediate compound in the two-step first stage of glycerol metabolism?

• glycerol-3-phosphate
• fructose-1,6-bisphosphate
• glycerol-2-phosphate

• dihydroxyacetone phosphate

How many turns of the β-oxidation pathway are needed to “process” a C16 saturated

fatty acid?

• 7
• 5
• 9
• 4

How many acetyl CoA molecules are produced when a C18 fatty acid is completely

processedthrough the B-oxidation pathway?

• 9
• 7
• 10
• 8

What is the primary site for ketogenesis?

• Liver mitochondria

• Adipose tissue

• Muscle cells

• Pancreas

Which ketone body is produced first in the process of ketogenesis?

• Acetoacetate

• β-hydroxybutyrate

• Acetone

• Oxaloacetate

What is the main function of adipose tissue?

• Storage location for energy

• Insulation

• Protection against physical shock

• All of the above