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Nicotinamide adenine dinucleotide

Ap bio cell respiration3 ppt

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Biology
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Cellular respiration
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Nicotinamide adenine dinucleotide

Overview 10 reactions convert glucose (6C) to 2 pyruvate (3C) produces: 4 ATP & 2 NADH consumes: 2 ATP net: 2 ATP & 2 NADH glucose C-C-C-C-C-C fructose-1,6bP P-C-C-C-C-C-C-P DHAP P-C-C-C G3P C-C-C-P pyruvate C-C-C ATP 2 ADP 2 ATP 4 ADP 4 NAD+ 2 2 2Pi 2Pi 2H Cellular Respiration Stage 2 & 3: Oxidation of Pyruvate Krebs Cycle Glycolysis is only the start Glycolysis Pyruvate has more energy to yield 3 more C to strip off (to oxidize) if O2 is available, pyruvate enters mitochondria enzymes of Krebs cycle complete the full oxidation of sugar to CO2 pyruvate ? ? ? ? ? ? CO2 2x 6C 3C glucose ? ? ? ? ? pyruvate 3C 1C Cellular respiration Mitochondria ??Structure Double membrane energy harvesting organelle smooth outer membrane highly folded inner membrane cristae

Ap bio cell respiration1 ppt

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Nicotinamide adenine dinucleotide
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Cellular Respiration Harvesting Chemical Energy ATP What?s the point? The point is to make ATP! ATP Harvesting stored energy Energy is stored in organic molecules carbohydrates, fats, proteins Heterotrophs eat these organic molecules ? food digest organic molecules to get? raw materials for synthesis fuels for energy controlled release of energy ?burning? fuels in a series of step-by-step enzyme-controlled reactions Harvesting stored energy Glucose is the model catabolism of glucose to produce ATP C6H12O6 6O2 ATP 6H2O 6CO2 ? + + + CO2 + H2O + heat fuel (carbohydrates) COMBUSTION = making a lot of heat energy by burning fuels in one step RESPIRATION = making ATP (& some heat) by burning fuels in many small steps CO2 + H2O + ATP (+ heat) ATP glucose

Biology Notes

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Nicotinamide adenine dinucleotide
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Biology Chapter 6 notes During cellular respirations: electrons are transferred to oxygen as carbon-hydrogen bonds of gloces are broken & hydrogen-oxygen bonds of water form Glucose loses hydrogen atoms as it is converted to carbon dioxide Oxygen gains hydrogen atoms in being converted to water Redox reaction: Electron transfer requires redox reactions for electrons to lose potential energy + release energy Oxidizing glucose: NAD+, dehygrenase Electron transport chain: electrons falling from glucose to oxygen, the transfer of electrons from an organic molecule to NADH Cellular respiration: Glycolysis (cytosol): break glucose into two molecules of pyruvate net product: NADH + ATP

cellular respiration

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Nicotinamide adenine dinucleotide
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STUDY GUIDE FOR CELLULAR RESPIRATION Cellular Respiration: Transfer of energy from organic compounds (especially GLUCOSE) to ATP. AEROBIC: cellular respiration WITH O2 ANEROBIC: cellular respiration WITHOUT O2 TWO STAGES OF CELLULAR RESPIRATION: STAGE 1: Glucose is converted to Pyruvate producing small amounts of ATP and NADH. STAGE 2: If O2, then: PYR and NADH make lots of ATP; if no O2, then Lactate or Ethanol and CO2 are produced. SEE FIGURE 10 FROM PAGE 104 IIN THE TEXTBOOK.
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