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Insulin/Glucagon Ratio and Ketone Bodies Formation Quiz

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Insulin/Glucagon Ratio and Ketone Bodies Formation Quiz

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Questions and Answers

What is the key role of carnitine in transporting fatty acids across the inner mitochondrial membrane?

Carnitine is essential for the conversion of acetoacetate to acetoacetyl CoA.

Carnitine is responsible for converting acetyl CoA to acetoacetyl CoA.

Carnitine facilitates the transport of free fatty acids into the mitochondria for β-oxidation. (correct)

Carnitine is involved in the direct activation of β-hydroxybutyrate.

What is a factor that determines whether free fatty acids are used for esterification or β-oxidation?

Activity of Acetoacetyl CoA Synthetase

Level of ATP in the blood

Presence of citric acid in the mitochondria

Availability of glycerol 3-phosphate (correct)

In which state is Carnitine Palmitoyl Transferase I activity inhibited?

Fasting state

Starvation state

Exercise state

Fed state (correct)

How does impairment of β-oxidation of fatty acids affect blood glucose levels?

Decreases blood glucose levels Signup and view all the answers

What occurs when ketogenesis exceeds the body's ability to utilize ketone bodies?

Ketosis and ketoacidosis Signup and view all the answers

Which process preferentially oxidizes ketone bodies over glucose and free fatty acids?

β-Oxidation Signup and view all the answers

What is the main difference between citric acid cycle and ketone bodies in terms of ATP generation?

Citric acid cycle generates more ATP than ketone bodies Signup and view all the answers

Which factor would inhibit Carnitine Palmitoyl Transferase I activity?

Malonyl CoA Signup and view all the answers

What happens to ketone body concentration during ketosis?

Ketone body concentration increases Signup and view all the answers