Insulin is an important hormone that allows the body to use glucose from food. After an individual eats a meal, glucose travels through the blood stream and reaches beta cells in the pancreas. The glucose causes the beta cells to release insulin. Insulin then travels through the blood stream and attaches to insulin receptors on other cells, which allows them to take in glucose and use it for energy.

What does this information best demonstrate?

A.
Cells interact with other cells for regulation and homeostasis.
B.
A hormone is a protein that performs many functions in the body.
C.
Only certain cells can use glucose to produce energy.
D.
Beta cells are not necessary for glucose to be utilized.

One of the important hormones in the human body is insulin. How the human body uses food to meet its energy needs is explained by knowledge of insulin and its workings.

Typically, food-derived glucose that enters the bloodstream is what causes blood sugar levels to rise. The pancreas is a gland that aids in the release of insulin to regulate blood sugar levels. Based on the blood sugar level, insulin often releases itself in a feedback system.

The insulin mechanism best exemplifies the following:

Together with glucagon, insulin contributes to the maintenance of the constant condition known as homeostasis in the human body.

Considered essential for cells to use glucose and obtain energy is insulin.

As a result, the mechanism of insulin in the human body shows how various cells use energy and how insulin is crucial for preserving homeostasis.

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