MICRO 20 Lecture Notes - Lecture 10: Growth Hormone–Releasing Hormone, Somatostatin, Red Blood Cell
Document Summary
Molecules that travel through the bloodstream to communicate with and control other organs, tissues, and/or cells. Bind to receptors on target cells to produce a response. Can produce responses in all cells with receptors all at once. Hormones last until they are broken down in the body making them more long term signals. Easily dissolve in blood plasma (liquid portion of blood) Binds to extracellular facing receptors (plasma membrane receptors) Hormones that are non-polar and do not dissolve in water a. Bind to plasma binding proteins that allow them dissolve in plasma a. Bind to intracellular receptors a. b. c. d. Hormones made from amino acids by changing the chemical structure of the amino acids. Water soluble hormones made by linking amino acids together. Sex hormones and hormones of the adrenal glands. In some cases a neuron can release hormones, these are called neuroendocrine cells. Hormones stimulate endocrine cells to release their hormone.
