Beta Oxidation Quiz

Beta oxidation of fatty acids occurs mainly in

• Mitochondrial matrix

• Cytosol

• ER

• Nucleus

Entry of long chain fatty acids into mitochondria requires

• Carnitine shuttle

• Citrate shuttle

• Malate shuttle

• Glucose transporter

First step of beta oxidation is

• Dehydrogenation

• Hydration

• Oxidation

• Thiolysis

Enzyme catalyzing first step of beta oxidation is

• Acyl CoA dehydrogenase

• Enoyl CoA hydratase

• Beta keto thiolase

• Acyl transferase

Each cycle of beta oxidation produces

• One acetyl CoA

• Two acetyl CoA

• One pyruvate

• One citrate

Reducing equivalents generated during beta oxidation are

• NADH and FADH2

• NADPH only

• ATP only

• FADH2 only

Final step of beta oxidation is catalyzed by

• Beta keto thiolase

• Acyl CoA dehydrogenase

• Enoyl CoA hydratase

• Isomerase

Complete oxidation of palmitic acid yields total ATP of

• One hundred six

• Thirty two

• Ninety eight

• One hundred thirty

Rate limiting step of fatty acid oxidation is

• Transport into mitochondria

• Thiolysis step

• Dehydrogenation step

• Hydration step

Malonyl CoA inhibits

• Carnitine acyl transferase 1

• Acyl CoA dehydrogenase

• Beta keto thiolase

• Enoyl hydratase