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8.3 READ Qs. 1- IDENTIFY In the Kreb’s cycle what is pyruvate converted to? 2- IDENTIFY: Complete the figure by writing the location of each stage of cell respiration. -carbon dioxide. -cytoplasm -mitochondria - mitochondria membrane. 8.3 READ Qs.
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8.3 READ Qs 1-IDENTIFY In the Kreb’s cycle what is pyruvate converted to? 2- IDENTIFY: Complete the figure by writing the location of each stage of cell respiration -carbon dioxide -cytoplasm -mitochondria -mitochondria membrane
8.3 READ Qs 3-DEFINE What 2 processes make up anaerobic respiration? 4- CLASSIFY What type of organisms have cells that carry out all of the process shown? -glycolysis -fermentation -plants [autotrophs]
8.3 CELLULAR RESPIRATION WHAT YOU WILL LEARN: -the role of electron carriers in cellular respiration -the difference between alcoholic fermentation and lactic-acid fermentation "Cell Respiration"
MAIN IDEA -Living organisms obtain energy breaking down organic compounds during cellular respiration
OVERVIEW of CELLULAR RESPIRATION -FUNCTION of cellular respiration— makes ENERGY for cells LIST organisms that carry out CELLULAR RESPIRATION? - plants / animals / prokaryotes LIST the organelle where cellular respiration takes place ---mitochondria IDENTIFY the chemical equation for cell respiration: -C6H12O6 + 6O2 6CO2 + 6H2O + energy
OVERVIEW of CELLULAR RESPIRATION IDENTIFY energy form used during cell respiration chemciallight mechanical IDENTIFY energy form produced during cell respiration chemciallight mechanical DETERMINE total energy produced during cell resp-- -ATP = __________ -NADH+ = __________ cellular respiration (SUGAR GOES TO ATP) ~36 ~10
IMPORTANT STRUCTURES of CELL RESP HOW CELLS OBTAIN ENERGY http://www.youtube.com/watch?v=i8c5JcnFaJ0
PHASES of CELLULAR RESPIRATION -2 ATP net -2 NADH+ cytoplasm glucosepyruvate -2 ATP net -8 NADH+ pyruvateCO2 mitochondria mitochondrial membrane e- + H+ + O2 H2O + ATP ~32 ATP net ~36-38 ATP net ~10 NADH+
CELLULAR RESPIRATION Photosynthesis and Respiration - YouTube
ANAEROBIC RESPIRATION-NO O2 CAUSE: CELLS CAN’T GET ENOUGH OXYGEN FERMENTATION FOLLOWS: GLYCOLYSIS IT REPLACES: KREB’S CYCLE AND ELECTRON TRANSPORT FERMENTATION IS NEEDED TO REPLENISH SUPPLY OF NAD+ FOR GLYCOLYSIS 2 ATP
STEP 1-GLYCOLYSIS breaks down glucose Occurs in cytoplasm of cells anaerobic process—NO O2 needed needs 2 ATP molecules to start • EACH GLUCOSE MOLECULE NETS: 2 ATP molecules 2 NADH 2 molecules of pyruvate
STEP 2-KREB’S CYCLE breaks down pyruvate-- forms CO2 Occurs in mitochondria of cell aerobic process—requires O2 • EACH MOLECULE GLUCOSE PRODUCES: 2 ATP 8 NADH 4 CO2
STEP 3-ELECTRON TRANSPORT ATP made from high-energy electrons & protons Occurs in mitochondrial membrane aerobic process—requires O2 • EACH GLUCOSE MOLECULE PRODUCES: 32 ATP electrons & protons w/O2 make H2O
ANAEROBIC RESPIRATION-FERMENTATIONNO O2 present-- LACTIC ACID FERMENTATION -produced in muscles during strenuous exercise—not enough O2 -lactic acid produced by many microorganisms -used in making yogurt, sour cream, cheese ALCOHOL FERMENTATION -used in making beer & wine/bread -occurs in organisms such as bacteria/yeast