Fatty Acid and Triacylglycerol Metabolism Quiz

What is the primary form of fatty acids found in plasma?

• Free fatty acids

• Fatty acid amides

• Fatty acid esters

• Fatty acid salts

Which enzyme catalyzes the carboxylation of acetyl CoA to form malonyl CoA?

• Carnitine palmitoyltransferase

• Hormone-sensitive lipase

• Acetyl CoA carboxylase

• Fatty acid synthase

What is the main product of fatty acid synthesis when the fatty acid reaches a length of 16 carbons?

• Arachidonic acid

• Oleate

• Palmitate

• Stearate

Which fatty acids are considered nutritionally essential for mammals?

• Palmitic and stearic acids

• Oleic and palmitoleic acids

• Linoleic and α-linolenic acids

• Arachidonic and eicosapentaenoic acids

What is the primary pathway for the catabolism of fatty acids?

• Glycolysis

• β-Oxidation

• Citric acid cycle

• Fatty acid synthesis

Which enzyme is responsible for the transport of long-chain fatty acids into the mitochondria?

• Carnitine palmitoyltransferase I

• Acyl-CoA synthetase

• Fatty acid synthase

• Hormone-sensitive lipase

What is the fate of free fatty acids in the bloodstream?

• They are oxidized in the liver

• They bind to plasma albumin

• They are converted to glucose

• They are stored in adipose tissue

What is the net ATP yield from the complete oxidation of palmitate?

• 106 ATP

• 120 ATP

• 80 ATP

• 90 ATP

Which ketone body is produced from acetoacetate?

• Acetone

• 3-Hydroxybutyrate

• Acetyl CoA

• Propionyl CoA

What happens to the levels of ketone bodies in uncontrolled diabetes mellitus?

• They are completely absent

• They decrease significantly

• They remain unchanged

• They increase significantly