PUFAs: Beta-Oxidation of Oleic Acid (1 Double Bond)

The video tutorial explains the beta oxidation process of monounsaturated fatty acids, focusing on oleic and palmitoleic acids. It highlights the challenges posed by CIS double bonds and the role of enoyl CoA isomerase in converting them to trans double bonds for effective metabolism. The video also introduces the complexity of beta oxidation when dealing with fatty acids with more than one double bond, setting the stage for further exploration in subsequent videos.

Which of the following fatty acids has 18 carbons and a double bond at the ninth position?

• Linoleic acid

• Palmitoleic acid

• Oleic acid

• Stearic acid

What is the main challenge with the cis double bond in monounsaturated fatty acids during beta oxidation?

• It forms a stable ring structure.

• It cannot be oxidized at all.

• It requires more energy to break.

• It needs to be converted to a trans double bond.

Which enzyme is responsible for converting a cis double bond to a trans double bond in monounsaturated fatty acids?

• Thiolase

• Enoyl CoA isomerase

• Enoyl CoA hydratase

• Fatty acyl CoA dehydrogenase

In the context of beta oxidation, what is the significance of a 2-3 trans double bond?

• It is irrelevant to the process.

• It is the end product of oxidation.

• It is the product of the first beta oxidation enzyme.

• It is the starting point of oxidation.

What happens to the complexity of beta oxidation when dealing with polyunsaturated fatty acids?

• It becomes simpler.

• It remains the same.

• It stops completely.

• It becomes more complex.