EVERYDAY SCIENCE

Detailed explanation-1: -Hormones travel throughout the body, either in the blood stream or in the fluid around cells, looking for target cells. Once hormones find a target cell, they bind with specific protein receptors inside or on the surface of the cell and specifically change the cell’s activities.

Detailed explanation-2: -Endocrine glands release hormones into the bloodstream. This lets the hormones travel to cells in other parts of the body. The endocrine hormones help control mood, growth and development, the way our organs work, metabolism, and reproduction. The endocrine system regulates how much of each hormone is released.

Detailed explanation-3: -Mechanism of Hormone Action Hormones are carried by the blood throughout the entire body, yet they affect only certain cells. The specific cells that respond to a given hormone have receptor sites for that hormone. This is sort of a lock-and-key mechanism.

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.

Detailed explanation-5: -Hormones produced by the endocrine glands are transported to the respective target organs through bloodstream by circulatory system.