Question

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.
Ketogenesis

Lipolysis

Proteolysis

Gluconeogenesis

Answer 1

Answer:

Lipolysis

Gluconeogenesis

Ketogenesis

Explanation:

The physiological responses to starvation follows the below steps;

• Change of carbohydrate metabolism to fat metabolism
• Glycogen stores are depleted
• Increase in gluconeogenesis occurs in 1 to 2 days of starvation
• Ketogenesis takes over due to decreased insulin levels
• Increased starvation from this step leads to protein catabolism and then organ failures