Question

In Fed State What is always done (always uses glucose)

Answer 1

In the postabsorptive state, the body relies initially on stored glycogen for energy. If glycogen stores are depleted, alternative sources such as fatty acids and proteins can be metabolized and used as fuel.

Step-by-step explanation:

The body meets the constant demand for energy in the fed state by using glucose.

In the absorptive state, or the fed state, glucose, fats, and proteins are absorbed and enter the bloodstream to be used immediately for fuel. The pancreas releases insulin to stimulate the uptake of glucose by liver cells, muscle cells, and fat cells, and to promote its conversion to glycogen.

In the postabsorptive state, or fasting state, glucose levels drop and the body relies initially on stored glycogen for energy. If glycogen stores are depleted, alternative sources such as fatty acids and proteins can be metabolized and used as fuel.

Answer 2

In the fed state, the body always uses glucose for immediate energy and stores the excess as glycogen in the liver and muscles. Insulin facilitates glucose uptake and storage, ensuring energy homeostasis is maintained.

Step-by-step explanation:

Understanding the Fed State in Metabolism

During the absorptive state, commonly referred to as the fed state, the body digests and absorbs nutrients from the food consumed. Glucose serves as the body's primary source of energy and is used by various tissues, including the brain which relies continuously on glucose. In this state, blood glucose levels are elevated, prompting the secretion of insulin, which facilitates the uptake of glucose by the liver, muscles, and adipose tissues. Excess glucose is then stored as glycogen in the liver and muscles for later use during fasting.

In contrast, during the postabsorptive state or fasting state, the body relies on stored energy. Glycogenolysis, the breakdown of glycogen, is initiated to maintain blood glucose levels. Ketone oxidation may provide additional energy through the release of lipids and glucose, with ATP generated for the body's use. These processes ensure a continuous energy supply between meals and during overnight fasting. Thus, in the fed state, the body always uses glucose as its immediate source of fuel, storing any excess in the form of glycogen. This mechanism is crucial for maintaining energy homeostasis, allowing for smooth transitions between fed and fasting states.