Whether the following characteristics belong to the absorptive state or post-absorptive state: a. Ketogenesis occurs. b. Gluconeogenesis and glucose sparing take place. c. Glycogenesis and lipogenesis take place. d. Protein synthesis decreases or stops. e. Glucose is readily available and is used as the primary fuel for most cells. f. Lipolysis releases fatty acids into the blood. Introduction: The body can enter different metabolic states, depending upon the time after feeding, availability of nutrients, and the events that dominate. Metabolic states are of two types, namely absorptive state and post-absorptive state. The absorptive state starts immediately after feeding, and lasts up to 4 hours. The body enters into the post-absorptive state after four hours of feeding, when the supply of nutrients ends.

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Chapter 23, Problem 14CYR

Summary Introduction

To review:

Whether the following characteristics belong to the absorptive state or post-absorptive state:

a. Ketogenesis occurs.

b. Gluconeogenesis and glucose sparing take place.

c. Glycogenesis and lipogenesis take place.

d. Protein synthesis decreases or stops.

e. Glucose is readily available and is used as the primary fuel for most cells.

f. Lipolysis releases fatty acids into the blood.

Introduction:

The body can enter different metabolic states, depending upon the time after feeding, availability of nutrients, and the events that dominate. Metabolic states are of two types, namely absorptive state and post-absorptive state. The absorptive state starts immediately after feeding, and lasts up to 4 hours. The body enters into the post-absorptive state after four hours of feeding, when the supply of nutrients ends.

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