Monounsaturated Fat Oxidation

What is the initial carbon structure of oleoyl-CoA before any oxidation?

• 16 carbons with a double bond at position 7

• 18 carbons with a double bond at position 9

• 20 carbons with a double bond at position 10

• 18 carbons with a double bond at position 8

During beta oxidation, how many carbons are removed in each cycle?

• One carbon

• Two carbons

• Three carbons

• Four carbons

What is the role of the D3D2 enzyme in the oxidation of unsaturated fatty acids?

• It adds a double bond between carbons 2 and 3

• It converts a cis double bond to a trans double bond

• It removes a double bond from the fatty acid

• It adds an extra carbon to the fatty acid chain

Which enzyme is bypassed during the oxidation of unsaturated fatty acids, resulting in the loss of FADH2 production?

• Acetyl-CoA carboxylase

• D3D2 isomerase

• Enoyl-CoA hydratase

• Fatty acetyl CoA dehydrogenase

How many acetyl-CoA molecules are produced from the complete oxidation of an 18-carbon unsaturated fatty acid?

• 7 acetyl-CoA

• 8 acetyl-CoA

• 9 acetyl-CoA

• 10 acetyl-CoA

What is the total number of NADH molecules generated during the oxidation of an unsaturated fatty acid?

• 9 NADH

• 6 NADH

• 7 NADH

• 8 NADH

Why is the oxidation of saturated fats considered more efficient than unsaturated fats?

• Saturated fats require fewer enzymes

• Saturated fats produce more FADH2

• Saturated fats have a longer oxidation pathway

• Saturated fats do not waste NADPH