I.Cellular Energy a.Cellular respiration-process of breaking down glucose molecules to produce energy (ATP) b.All cells go through cellular respiration----plant.

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  • I.Cellular Energya.Cellular respiration-process of breaking down glucose molecules to produce energy (ATP)b.All cells go through cellular respiration----plant and animal cells

  • i.GLYCOLYSIS1.1st step of cellular respiration2.Cells break down glucose to make 2 ATP and pyruvic acid3. Takes place in the cytoplasm

    I. Cellular Energy

    a. Cellular respiration-process of breaking down glucose molecules to produce energy (ATP)

    b. All cells go through cellular respiration----plant and animal cells

    i. GLYCOLYSIS

    1. 1st step of cellular respiration

    2. Cells break down glucose to make 2 ATP and pyruvic acid

    Glycolysis Summary

    Glucose ( ( Net 2 ATP

    Chemical reactions requiring ATP, ADP and phosphate

  • Aerobic versus Anaerobic Respiration Is Oxygen Present?

    Yes NoAEROBIC RESPIRATION ANAEROBIC RESPIRATIONMust have O2 No O2 is neededTakes place in the takes place in the mitochondria cytoplasmProduces 36 ATP produces 2 ATP

  • c.Aerobic Respirationi. Occurs only when oxygen is presentii. A series of reactions that change pyruvic acid into ATP

  • 1. the Krebs cycle or the citric acid cycle takes place in the mitochondria i. It produces 2 ATP

  • 2.The electron transport chain also takes place in the mitochondria and it produces 34 ATPiii. With glycolysis, aerobic respiration produces 36 NET ATP molecules from 1 glucose---2 ATP are used to drive the process

  • Section 9-2Electron TransportHydrogen Ion MovementATP ProductionATP synthesesChannelInner MembraneMatrixIntermembrane SpaceGo to Section:Mitochondrion

  • iv. ATP is used for cell processes, growth, repair, movement, homeostasis etc

  • GlucoseGlycolysisCytoplasmPyruvic acidElectrons carried in NADHKrebs CycleElectrons carried in NADH and FADH2Electron Transport ChainMitochondrionMitochondrionSection 9-1Go to Section:

  • Aerobic Respiration Summary (including glycolysis)Glucose Net 36 ATPC6H12O6 (plus CO2 and H2O)Chemical reactionsRequiring ADP, ATP, Phosphate and Oxygen

  • Section 9-2Glucose (C6H1206)+Oxygen (02)GlycolysisKrebs CycleElectron Transport ChainCarbon Dioxide(CO2)+Water(H2O)Go to Section:Cellular Respiration

    1. The electron transport chain also takes place in the mitochondria and it produces 34 ATP

    ii. Produces 36 NET ATP molecules from 1 glucose---2 ATP are used to drive the process

    iii. ATP is used for cell processes, growth, repair, movement, homeostatsis etc

    b. Anaerobic Respriation

    i. Occurs when no oxygen is present

    ii. Not very effiecient---only produces 2 ATP molecules from one glucose

    iii. There are different types of anaerobic respiration

    1. Lactic Acid Fermentation-animal and some bacteria use this process

    a. Produces lactic acid (causes muscle soreness) and 2 ATP

    2. Alcoholic Fermentation-plant cells and some microorganism like yeast

    Aerobic Respiration Summary (including glycolysis)

    Glucose ( chemical reactions requiring ( NET 36 ATP, CO2, & H2O

    ADP, ATP, phosphate & O2

    Aerobic Respiration (Net Reaction)

    _______________ + __________ ( _______ + _________ + _____

    glucose oxygen carbon water energy

    dioxide

  • d.Anaerobic Respirationi. Occurs when no oxygen is presentii. Not very efficient---only produces 2 ATP molecules from one glucoseiii. There are different types of anaerobic respiration

  • 1. Lactic Acid Fermentation -animal and some bacteria use this processa. Produces lactic acid (causes muscle soreness) and 2 ATP

  • 2. Alcoholic Fermentation -plant cells and some microorganism like yeasta. Produces ethyl alcohol and CO2 and ATP

  • Alcoholic drinks are produced with fermentation, and bread is forced to rise from the carbon dioxide produced by yeast fermenting the bread.

  • The alcohol in bread is evaporated during the cooking process.

  • GlucoseGlycolysis Krebs cycle Electron transportAlcohol or lactic acid

    Section 9-1Go to Section:Fermentation (without oxygen)

  • a. ATP

    2. Alcoholic Fermentation-plant cells and some microorganism like yeast

    a. Produces ethyl alcohol and CO2 and ATP

    Photosynthesis and cellular respiration are almost exactly opposite reactions:

    Photosynthesis reaction:

    ____________ +_____________ + _______________ ( __________ + _____________

    Respiration

    ____________ +_____________ ( __________ + _____________ + ______________

    Anaerobic Respiration (Net Reaction)

    enzymes

    _____________

    glucose

    Anaerobic Respiration Summary (including glycolysis)

    _____________ ( chemical reactions ( Net 2 ATP

  • Photosynthesis and respiration are almost exactly opposite reactions.Photosynthesis:6CO2 + 6H2O + sun light C6H12O6 + 6O2

    Respiration:C6H12O6 + 6O2 6CO2 + 6H2O + ATP

  • Cellular RespirationPhotosynthesisTakes place in--Occurs when--What goes in?What comes out?Energy source?Result?

  • Cellular RespirationPhotosynthesisTakes place in--All cellsCells withChloroplastOccurs when--All of the timeIn the presence of lightWhat goes in?Carbohydrates and oxygenCO2 and H2OWhat comes out?CO2 and H2OCarbohydrates and oxygenEnergy source?Chemical bondsLightResult?Energy is stored as ATPEnergy is stored as carbohydrates

  • Copy and CompleteWhat is the process that starts cellular respiration?Name three parts of aerobic respiration.How many ATP molecules are produced from one glucose molecule by glycolysis?Most of aerobic respiration occurs in the ____.Anaerobic respiration occurs in the___.During glycolysis, glucose is broken down into pyruvic acid, and two molecules of ATP are formed. What will happen next in a muscle cell if NO oxygen is present?

  • When yeast is deprived of oxygen, it will convert glucose intoWhich process does NOT produce CO2?How many ATP molecules are produced form one glucose molecule during the entire process of aerobic respiration?How many net ATP molecules are produced from one glucose molecule if a cell undergoes anaerobic respiration?

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