AP BIOLOGY

Detailed explanation-1: -The endocrine system is made up of glands that make hormones. Hormones are the body’s chemical messengers. They carry information and instructions from one set of cells to another. The endocrine (EN-duh-krin) system influences almost every cell, organ, and function of our bodies.

Detailed explanation-2: -Endocrine glands make chemicals called hormones and pass them straight into the bloodstream. Hormones can be thought of as chemical messages. From the blood stream, the hormones communicate with the body by heading towards their target cell to bring about a particular change or effect to that cell.

Detailed explanation-3: -Unlike plant hormones, animal hormones are often (though not always) produced in specialized hormone-synthesizing glands (shown below). The hormones are then secreted from the glands into the blood stream, where they are transported throughout the body.

Detailed explanation-4: -To get around, the hormones attach to water soluble proteins that shuttle them in the blood’s aqueous environment. These transport proteins deliver the hormones to their target cells and protect them from being chemically altered, inactivated, and eliminated from the body by the liver and kidneys.