Chapter 41

Chapter 41 - Chapter 41 Animal Nutrition 1) Homeostatic...

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Chapter 41 Animal Nutrition 1) Homeostatic mechanisms manage an animals energy budget 2) Glucose Regulation as an Example of Homeostasis a) Glucose is a major fuel for cells b) Its metabolism is regulated by hormone action 3) Appetite Regulating Hormones a) A variety of hormones regulate appetite by acting on the feeding control center of the hypothalamus b) Stimulated by ghrelin c) Suppressed by leptin peptide YY (PYY) and insulin d) Leptin is secreted by adipose tissue i) Body fat decreases > little leptin > appetite increases ii) Body fat Increases > much leptin > appetite decreases 4) An animal’s diet must supply carbon skeletons and essential nutrients a) Carbon skeletons are mostly supplied by carbohydrates, proteins, and lipids b) Other nutrients include the vitamins and minerals 5) Essential Nutrients a) Essential amino acids are ones that animals cannot synthesize b) Animals require 20 amino acids i) Complete proteins ii) Incomplete proteins c) Essential fatty acids are required in the diet
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Chapter 41 - Chapter 41 Animal Nutrition 1) Homeostatic...

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