Chemical Coordination and Integration

Question

Define the terms : endocrine glands and hormones.

Answer

Endocrine glands : These are ductless glands which produce hormones. The hormones secreted by them are transported by the blood to the different parts of the body.

Hormones : The hormones are chemical informational regulatory molecules secreted by endocrine glands. They non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts.  

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