• Hormones that bind to receptors in the plasma membrane of their target cells activate enzymes in the target cell cytoplasm (p. 294)
• Hormones that bind to nuclear receptors in their target cells alter the target cell metabolism by regulating gene expression (p. 292)
• Hormonal secretions from adipose cells regulate hunger and metabolism . .(p. 606)
• Anabolism and catabolism are regulated by a number of hormones (p. 609)
• Insulin stimulates the synthesis of glycogen and fat (p. 611)
• The adrenal hormones stimulate the breakdown of glycogen, fat, and protein (p. 619)
• Thyroxine stimulates the production of a protein that uncouples oxidative phosphorylation. This helps to increase the body's metabolic rate (p. 620)
• Growth hormone stimulates protein synthesis (p. 621)
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.