During starvation, the body adapts to ensure that cells have access to a variety of fuel...

During starvation, the body adapts to ensure that cells have access to a variety of fuel sources. Select all of the biochemical pathways that are active during periods of prolonged starvation.

Choose All That Apply

A. Ketogenesis

B. Lipolysis

C. Proteolysis

D. Gluconeogenisis

E. Glycogenesis

F. Lipogenesis

Solutions

Expert Solution

* Ketogenesis

This is the process of formation of ketone bodies by the liver. During the period of fasting, liver receives a high volume of fatty acids from the break down of adipose tissue. Due to increased levels of acetyl CoA in the liver ( produced mainly from fatty acid oxidation ), pyruvate dehydrogenase is inhibited and pyruvate carboxylase is activated.

* Lipolysis

Metabolic pathway by which glycerol and fatty acids are produced by the hydrolysis of lipid triglycerides. It is used to mobilize stored energy during fasting or excercise and occurs in fat adipocytes.

* Gluconeogenesis

Gluconeogenesis is a metabolic pathway that results in the generation of glucose from certain non carbohydrate carbon substrates.

gladiator answered 1 month ago

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