L08b - NATS1610-fw1718 - UPDATED - Mitochondria and Cell Metabolism (1).pdf

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36 Image from - http://www.elmhurst.edu/~chm/vchembook/601glycolysissum.html
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Summary of Cellular Respiration 37
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38 C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + (36 ATPs) According to some newer research, the ATP yield during aerobic respiration is not 36–38, but only about 30–32 ATP molecules per 1 molecule of glucose Image from Goodenough et al., Biology of Humans: Concepts, Applications, and Issues , 2ed, Pearson Prentice Hall 2 CO 2 4 CO 2 (Kreb’s Cycle) (from ONE glucose molecule)
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More Summaries Glycolysis Overview n http://vcell.ndsu.nodak.edu/animations/glycolysis_overview/movie-flash.htm Citric Acid Cycle Overview n http://vcell.ndsu.nodak.edu/animations/citricacid_overview/movie-flash.htm Electron Transport Chain n http://vcell.ndsu.nodak.edu/animations/etc/movie-flash.htm :*** Good One - Electron Transport and ATP Synthesis n http://bcs.whfreeman.com/webpub/Ektron/pol1e/Animated%20Tutorials/at0602/at_0602_e_trans_atp_syn.html 39
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40 Review: BLOOD GLUCOSE REGUL ATION GLYCOGEN functions as primary short term energy storage in animal cells and when blood glucose is low, glycogen is converted to glucose Pancreas n Located behind stomach n Secretes glucagon & insulin n Also secretes digestive enzymes Glucagon (HORMONE) n I ncreases blood glucose n Prompts liver to convert GLYCOGEN TO GLUCOSE n Liver releases glucose into the bloodstream Insulin (HORMONE) n Lowers blood glucose by actions at... n liver (stop glycogen conversion to glucose) n muscle (uptake of glucose) n adipose (uptake of glucose) Image from Ch. 16 – from Sherwood et al, Human Physiology: From Cells to Systems. 2 nd Canadian, Edition, Nelson
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41 Image from - http://www.elmhurst.edu/~chm/vchembook/601glycolysissum.html
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Location of PANCREAS in Human Body 42 Fig. 10.19a – from Goodenough et al., Biology of Humans: Concepts, Applications, and Issues , 2ed, Pearson Prentice Hall
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Some Review Questions n What is the name of the site on enzymes that binds substrate molecules? n How is energy stored in ATP molecules released? n What are the inner membrane folds of the mitochondria called? n Where is the mitochondrial matrix? 43
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n What are the 3 chemical pathways of cellular respiration? n What are the final products of the Krebs cycle (per one glucose molecule)? n What does ATP Synthase do? n What is the function of glucagon? n When blood glucose levels are high, is there an increase or decrease in insulin? 44 More Questions
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45 Next Topic Cells and Cellular Metabolism n Text: Human Biology, Starr and McMillan, 11/ed n Chapter 3, pages 43, 46-47, 54-57 n Chapter 4, pages 74 n From Cells to Tissues n Cell membranes n Cell transport n Linking cells together
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