HTHSCI 1LL3 Lecture Notes - Lecture 19: Homeostasis, Glycogen, Ketone Bodies
9 Apr 2018
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Fasted state: is the rainy day breakdown stored food. Tissues may be specialized for either a storage function (adipose tissue). Nutrients must be circulated to reach these sites. Hormones, nutrients, waste products are transported through the body by the circulatory system. Products of digestion go to the liver (water soluble) or into the blood (through the lymphatic system (chylomicrons bloodstream [thoracic duct]) if fat soluble) Blood, nutrients and oxygen are circulating in the body being delivered to the cells. Nutrients cells, waste liver (urea), co 2 (lungs) Catabolism (breakdown) produces co 2 , which must be removed. Breakdown of proteins produces nitrogen which must be disposed of. Anabolism is buildup , eg. protein translation from individual amino acids** The respiratory system disposes of co 2 (byproduct of metabolism) Unabsorbed foods are excreted* from the gi tract. *fibre-- if we don"t have the digestive enzyme. Nitrogenous wastes arise from catabolism of amino acids.
