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6H 2 O + 6CO 2 + 36 ATP C 6 H 12 O 6 + 6O 2 Cellular Cellular Respiration Respiration Harvesting Chemical Harvesting Chemical Energy Energy Glucose + Oxygen > Water + Carbon Dioxide +ATP

Cellular Respiration Harvesting Chemical Energy

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C 6 H 12 O 6 + 6O 2 . 6H 2 O + 6CO 2 + 36 ATP. Cellular Respiration Harvesting Chemical Energy. Glucose + Oxygen > Water + Carbon Dioxide +ATP. Glucose. Glucose is the fuel most commonly used by the cell The breakdown of glucose is AEROBIC Respiration with oxygen. - PowerPoint PPT Presentation

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Page 1: Cellular Respiration Harvesting Chemical Energy

6H2O + 6CO2 + 36 ATPC6H12O6 + 6O2

Cellular RespirationCellular RespirationHarvesting Harvesting

Chemical EnergyChemical Energy

Glucose + Oxygen > Water + Carbon Dioxide +ATP

Page 2: Cellular Respiration Harvesting Chemical Energy

GlucoseGlucose

Glucose is the fuel most commonly Glucose is the fuel most commonly used by the cellused by the cell

The breakdown of The breakdown of

glucose is AEROBIC glucose is AEROBIC

Respiration withRespiration with

oxygen.oxygen.

Page 3: Cellular Respiration Harvesting Chemical Energy

Cellular Cellular RespirationRespirationA process in A process in

which glucose which glucose molecule is molecule is broken down broken down and ATP is and ATP is released.released.

Page 4: Cellular Respiration Harvesting Chemical Energy

Energy IN A CellEnergy IN A Cell

The energy source we need is The energy source we need is

ATP (Adenosine Triphosphate).ATP (Adenosine Triphosphate). ATP consist ofATP consist of: an adenosine molecule, a : an adenosine molecule, a

ribose sugar, an 3 phosphate groups.ribose sugar, an 3 phosphate groups. Cells need a constant supply of ATP.Cells need a constant supply of ATP. Having ATP is like having your battery Having ATP is like having your battery

charged.charged.

Page 5: Cellular Respiration Harvesting Chemical Energy

Aerobic RespirationAerobic Respiration

Requires oxygenRequires oxygen Aerobic respiration-process in which ATP Aerobic respiration-process in which ATP

is made using oxygen.is made using oxygen. Occurs in the mitochondriaOccurs in the mitochondria of the cell. of the cell. Aerobic respiration happens in ALL Aerobic respiration happens in ALL

aerobic organisms (plants/animals)aerobic organisms (plants/animals)

Page 6: Cellular Respiration Harvesting Chemical Energy

Cellular Cellular RespirationRespiration

Page 7: Cellular Respiration Harvesting Chemical Energy

Three Stages of Cellular RespirationThree Stages of Cellular Respiration

GlycolysisGlycolysis

Citric Acid Cycle or Kreb Citric Acid Cycle or Kreb CycleCycle

Electron TransportElectron Transport

Page 8: Cellular Respiration Harvesting Chemical Energy

11stst STEP STEP

GlycolysisGlycolysis—aerobic or —aerobic or anerobic (no oxygen)anerobic (no oxygen)

1.1. Takes place in cytoplasm.Takes place in cytoplasm.2.2. Glucose main food source.Glucose main food source.3.3. Makes only 2 ATP’s.Makes only 2 ATP’s.

Page 9: Cellular Respiration Harvesting Chemical Energy

22ndnd Step Step Citric Acid Cycle or Kreb Citric Acid Cycle or Kreb

CycleCycle1.1. Occurs in the mitochondria.Occurs in the mitochondria. 2.2. Oxygen must be present.Oxygen must be present.3.3. Carbon Dioxide is given off.Carbon Dioxide is given off.4.4. ENERGY is held in bonds of ENERGY is held in bonds of

hydrogen.hydrogen.5.5. Makes 2 ATPs.Makes 2 ATPs.

Page 10: Cellular Respiration Harvesting Chemical Energy

33rdrd Step Step

Electron Transport ChainElectron Transport Chain1.1. Bonds are broken.Bonds are broken.2.2. Energy is released.Energy is released.3.3. Hydrogen and Oxygen bond Hydrogen and Oxygen bond

(Water is given off).(Water is given off).4.4. 34 ATP’s are made.34 ATP’s are made.

Page 11: Cellular Respiration Harvesting Chemical Energy

ANAEROBIC RESPIRATIONANAEROBIC RESPIRATION

Does not require oxygen.Does not require oxygen. Anaerobic respiration-process of Anaerobic respiration-process of

making ATP without oxygen.making ATP without oxygen. Occurs in the cytoplasm of the cellOccurs in the cytoplasm of the cell

Two types of anaerobic respirationTwo types of anaerobic respiration

1.1. Lactic acid fermentationLactic acid fermentation

2.2. Alcoholic fermentationAlcoholic fermentation

Page 12: Cellular Respiration Harvesting Chemical Energy

Cellular RespirationFermentation in the Absence of Oxygen

2 Types each identified by its

waste products

(1) Alcoholic Fermentation

(2) Lactic Acid Fermentation

Page 13: Cellular Respiration Harvesting Chemical Energy

Alcoholic FermentationAlcoholic Fermentation

Occurs in bacteriaOccurs in bacteria

and yeast cell.and yeast cell.Produces alcohol Produces alcohol

and carbon dioxide.and carbon dioxide.Micro-organisms thatMicro-organisms that

make yeast, breadmake yeast, bread

and wine.and wine.

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Lactic Acid FermentationLactic Acid Fermentation

Occurs in animal cells Occurs in animal cells

when oxygen is not when oxygen is not

present.present. SORE MUSCLESSORE MUSCLES

will occur.will occur.

Page 15: Cellular Respiration Harvesting Chemical Energy

Alcoholic FermentationAlcoholic Fermentation

Some organisms carry out alcoholic fermentation. This wasdiscovered by Louis Pasteur in his study of the chemistryof wines. Yeasts break down the sugars in the juice topyruvate by glycolysis, then the pyruvate is dismantled toyield CO2 and ETHANOL. If the fermentation continues

until all the sugar is used, a dry wine is produced. Iffermentation is stopped before all the sugar is used, thena sweet wine is produced.

Page 16: Cellular Respiration Harvesting Chemical Energy

One Glucose Molecule Produce 38 ATPOne Glucose Molecule Produce 38 ATP

2 +2 + 34

Total 38

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6 CO6 CO22 + 6 H + 6 H220 0 C C66HH1212OO66 + 6 O + 6 O22

Photosynthesis

Page 18: Cellular Respiration Harvesting Chemical Energy

PhotosynthesisPhotosynthesis Process by which plants and other autotrophs Process by which plants and other autotrophs

store the energy of sunlight into sugars.store the energy of sunlight into sugars. Requires sunlight, water, and carbon dioxide.Requires sunlight, water, and carbon dioxide.

6 CO6 CO22 + 6 H + 6 H220 0 C C66HH1212OO6 6 + 6 O + 6 O22

Occurs in the leaves of plants in organelles Occurs in the leaves of plants in organelles called chloroplasts.called chloroplasts.

Page 19: Cellular Respiration Harvesting Chemical Energy

FACTS TO KNOWFACTS TO KNOW

Site for PhotosynthesisSite for Photosynthesis::

chloroplastchloroplast ChlorophyllChlorophyll- Green plant- Green plant

pigment found in the pigment found in the

chloroplastchloroplast Organ of PhotosynthesisOrgan of Photosynthesis::

LeafLeaf

Page 20: Cellular Respiration Harvesting Chemical Energy

PhotosynthesisPhotosynthesis: The Chemical : The Chemical ProcessProcess

Occurs in two main phasesOccurs in two main phases.. Light reactionsLight reactions Dark reactions (aka – the Calvin Cycle)Dark reactions (aka – the Calvin Cycle)

Light reactions Light reactions are the “photo” part of are the “photo” part of photosynthesis. Light is absorbed by photosynthesis. Light is absorbed by pigments.pigments.

Dark reactions Dark reactions are the “synthesis” part of are the “synthesis” part of photosynthesis. Trapped energy from the sun photosynthesis. Trapped energy from the sun is converted to the chemical energy of sugars. is converted to the chemical energy of sugars.

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1.DEPENDS UPON LIGHT1.DEPENDS UPON LIGHT

2. LIGHT IS ABSORBED 2. LIGHT IS ABSORBED

3. WATER IS SPLIT3. WATER IS SPLIT

LIGHT REACTIONLIGHT REACTION (LIGHT – DEPENDENT(LIGHT – DEPENDENT))

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DARK REACTIONDARK REACTION (LIGHT-INDEPENDENT)(LIGHT-INDEPENDENT)

1.1. LIGHT IS NOT NECESSARY.LIGHT IS NOT NECESSARY.

2. THIS REACTION FOLLOWS THE 2. THIS REACTION FOLLOWS THE LIGHT REACTION.LIGHT REACTION.

3. SUGAR (GLUCOSE) IS MADE.3. SUGAR (GLUCOSE) IS MADE.

4. CARBON DIOXIDE IS GIVEN OFF.4. CARBON DIOXIDE IS GIVEN OFF.

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PHOTOSYNTHESISPHOTOSYNTHESIS

This reaction is one of the most important This reaction is one of the most important chemical reactions that takes place on chemical reactions that takes place on earth.earth.

ALL FOOD COMES DIRECTLY OR ALL FOOD COMES DIRECTLY OR INDIRECTLY FROM PLANTSINDIRECTLY FROM PLANTS