NUTR 3210 Lecture 10: NUTR*3210 - Lecture 10 (Feb 9)
10 Feb 2017
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Document Summary
Multiple organs/tissues with specific energy requirements (continuous state of flux) Brain requires 100g/day glycogen stores in live provide a daily buffer, but not a long-term storage. Lots of protein, not really stored per se. Therefore, not typically used as an energy source because this would lead to loss of function. Stored in lipid droplets in adipose tissue. Excess lipid storage not good in liver and muscle. Hormones move throughout the body and regulate signalling pathway in their target tissues (insulin, glucagon, epinephrine) Usually affects protein function (phosphorylation or de-phosphorylation) Several hours to says i. e. fasting, starvation. Secretion regulated by get hormones incretins . Fed state (insulin secretion high), fasted state (insulin secretion low) Increase fat storage in adipose tissue and lipogenesis. Maintains glucose output (from liver) during fasting. Fight or flight (energy released to fight or run) High requirement for oxidative metabolism (needed to support continuous electrical activity) Usually glucose (around 100g/day required for function)
