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Cellular Respiration

by: tess2019

Cellular Respiration 40763 - BMS 110 - B

GPA 4.0
Introduction to the Biomedical Sciences
Ivy J Fitzgerald

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About this Document

Third lecture for Exam 2; covers cellular respiration
Introduction to the Biomedical Sciences
Ivy J Fitzgerald
Class Notes
Cellular Respiration, aerobic respiration, glycolysis, ATP, pyruvate, NADH, krebs cycle, citric acid cycle, electron transport chain, mitochondrial matrix
25 ?




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This 3 page Class Notes was uploaded by tess2019 on Thursday October 8, 2015. The Class Notes belongs to 40763 - BMS 110 - B at Missouri State University taught by Ivy J Fitzgerald in Fall 2015. Since its upload, it has received 11 views. For similar materials see Introduction to the Biomedical Sciences in Biomedical Sciences at Missouri State University.

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Date Created: 10/08/15
Cellular Respiration Friday September 18 2015 100 PM Cellular Location Glycolysis gt cytosol Citric Acid cycle gt matrix of mitochondria Electron transport chain gt inner membrane of mitochondria Mitochondria quotMitochondria are the powerhouse of the cellquot Make ATP Evolved from bacteria that got ingested but not digested Double membrane 0 Inner and outer membrane 0 lntermembrane spacespace btinner membrane and outer membrane 0 Cristaefolds in inner membrane 39 Folds increase surface area of membrane making more room for ATP synthesis 0 Matrix space inside inner membrane Offspring inherit mitochondria from mother39s egg Mitochondria selfreplicating o 1 mitochondrion will break in half to make 2 Mitochondria contain their own genome 0 Circular 0 Encodes 13 proteins 22 tRNAs and 2 rRNAs o 99 of mitochondrial proteins encoded in nuclear DNA Production of ATP 0 Use proton H gradient to make ATP 0 Mitochondria pump protons into the intermembrane space high concentration 39 High concentration of protons in intermembrane soace low U concentration in matrix 39 Diffusion of protons is what we use to make ATP 39 Electron transport chain 0 The mitochondrion uses the electrochemical energy ofthe hydrogen ion moving down its gradient to make ATP 7 o ATPaseenzyme that makes ATPfound in inner membrane also called ATP synthase 39 ADP Pi gt ATP Cellular Respiration Cellular respirationthe process by which cells convert glucose to ATP 0 Convert energy stored in food to a useable form Involves 0 Breaking down glucose into carbon dioxide 0 Moving electrons 0 Oxygen aerobic Three parts 0 Glycolysis sugaris broken down into pyruvate 39 Pyruvate a glucose molecule that has been broken in half half the molecule 0 Citric acid cycle carbon dioxide hydrogen ions and electrons are produced 0 Electron transport chain electrons and hydrogen ions are transported and water is produced Glycolysis Glycolysis the breaking down of sugar Occurs in cytoso Per glucose moecue broken down 0 2 pyruvate molecules formed 0 2 NADH reduced electron carriers are formed 0 2 ATP are used for phosphorylation o 4 ATP are produced 39 Net change 2 ATP produced per glucose Citric Acid Cycle Also called Krebs cycle and TCA cycle Occurs in matrix of mitochondria Pyruvate and coenzyme Aform acetylCoA For 1 glucose molecule ortwo pyruvate o 2 ATP 0 6 carbon dioxide 0 8 NADH reduced electron carriers 0 2 FADHzreduced electron carriers Electron Transport Chain Occurs in inner membrane ofmitochondria Most energy of cellular respiration is made here NADH and FADHz bring electrons to electron transport chain 0 Energy of moving electrons is used to move hydrogen ions from matrix to inner membrane space 0 The energy from electrons brought by the NADH and FADH2 produced during glycolysis and the citric acid cycle move enough hydrogen ions to make 28 ATP 0 10 NADH 39 25 ATP produced per NADH o 2 FADH2 39 15 ATP per FADHZ Hydrogen and electrons combine to 02 to make water Summary 1 glucose gt 32 ATP total C6H1206 602 gt 6602 6H20


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