What are the three general characteristics of hormones

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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What are the three general characteristics of hormones

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Step 1

Hormones are very essential for body activities. They are chemical messengers and are secreted by specialized structures namely endocrine and exocrine glands. In animals there are many hormones present, and each hormone is different in its function. They will act on specific organs which is called target organs.

Step 2

 The major characteristics of hormones include,

  • The hormones are secreted directly into the blood and they travel throughout the body to find out the targeted organ.
  • Hormones are chemical. So they act as chemical messengers and they help to the regulation of body activity by attaching to the targeted organ or cells.
  • There are two kinds of hormones, peptide hormones, and steroid hormones. The peptide hormones act on the receptors found on the surface of the cells and steroid hormones act on the receptors present inside the cells.
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