Question

Intermittent fasting is a health trend in which people only allow themselves to eat during small windows of time during the day. Although

controverstial, the claim that metabolism changes during periods of fasting is based in good science. What metabolic changes would you
expect to see during the fasted/postabsorptive state? Choose all that apply.
Insulin would be the predominant hormone
Glucagon would be the predominant hormone
Glycogenesis would be taking place
Lipogenesis would be taking place
Glycolysis would be taking place
Lipolysis would be taking place
The liver would be storing glucose reserves
The liver would be carrying out gluconeogenesis
Ketone bodies would be building up
Plasma fatty acids will be decreasing
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Answer 1

The metabolic changes during the fasted/postabsorptive state include glucagon being the predominant hormone, lipolysis, gluconeogenesis, and the buildup of ketone bodies.

Step-by-step explanation:

During the fasted/postabsorptive state, the metabolic changes that would be expected are:

• Glucagon would be the predominant hormone, which stimulates the release of stored glucose from the liver
• Glycogenolysis (breakdown of glycogen) would be taking place to release glucose for energy
• Gluconeogenesis would be occurring in the liver to produce glucose from non-carbohydrate sources, such as amino acids and glycerol
• Lipolysis would be taking place, which is the breakdown of stored fats to release fatty acids and glycerol for energy
• Ketone bodies would be building up as a result of increased fat metabolism

Therefore, the correct options are:

• Glucagon would be the predominant hormone
• Lipolysis would be taking place
• The liver would be carrying out gluconeogenesis
• Ketone bodies would be building up

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