AN S 345 Lecture Notes - Lecture 24: Amylose, Catabolism, Amylopectin
27 Mar 2017
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Transcription factors turn on lipolytic genes and lipogenic genes. Lipolytic genes: genes that initiate the chemical breakdown of fat. Lipogenic genes: genes that are caused by fat. Exam question: be able to describe the process of adipocyte development. Growth of adipose tissue involves both hyperplasia and hypertrophy. There is a major increase in size and the number of large adipocytes due to the accumulation of triglyceride and recruitment of preadipocytes. De novo lipogenesis is literally making fatty acids from nonfat sources. The majority of our livestock depends on de novo lipogenesis. The key thing with cellular metabolism is anabolic and catabolic (building up and breaking down) The cell likes to compartmentalize catabolic and anabolic reactions. Complete breakdown and utilization occurs in the mitochondria. Amylose (amylopectin) is the scientific name for starch and made of glucose polymers. Normally it is broken down in the lumen of the animal. Glucose glucose-6-phosphate pyruvate [through glycolysis of 2+ atp net.
