Cellular Respiration and Photosynthesis

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Cellular Respiration and Photosynthesis
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Cellular Respiration

• Cellular Respiration The breakdown of food
  (glucose) for energy
• Takes place in all organisms
• a. Plants
• b. Animals
• c. Bacteria
• d. One-celled paramecium and amoeba.
• A process that occurs continuously in all
  organisms.

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Useable Energy

• ATP energy used at the cellular level
• mitosis
• 2. protein production
• 3. active transport
• ATP is also used by the body
• 4. movement 5. breathing 6. thinkingetc

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Useable Energy

• ATP is made in two ways
• Aerobic Cellular Respiration if oxygen is used
• Anaerobic Cellular Respiration if oxygen is not
  used

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ATP

• Also known as Adenosine Triphosphate.
• It contains
• Adenine - contains nitrogen
• A sugar called ribose
• 3 phosphates with
• 2 high energy phosphate bonds

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Recycled ATP
Add

• Removing A
• Phosphate Group
• From ATP Releases
• Energy forms ADP

• Adding A Phosphate Group To ADP stores Energy in
  ATP

Remove
ATP
ADP P
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AEROBIC CELLULAR RESPIRATION

• Takes place in the mitochondria
  of plants and animals
• Oxygen is necessary
• SUMMARY EQUATION
• C6H12O6 O12 6H2O
  6CO2 36 ATP glucose
  oxygen water carbon dioxide
  36 ATP

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3 Steps - AEROBIC RESPIRATION

• Glycolysis
• Krebs Cycle
• Electron Transport Chain

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Aerobic respiration Step 1 is called Glycolysis
Glucose
Glycolysis in the Cytoplasm
Pyruvate
Pyruvate
Krebs cycle
Electron Transport Chain
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ANAEROBIC RESPIRATION

• FERMENTATION
• - also known as anaerobic respiration
• Carried out where oxygen is lacking
• Still uses glucose as fuel
• Two types
• Lactic Acid Fermentation
• Makes 2 ATP
• Associated with muscle fatigue
• Ethyl Alcohol Fermentation
• Makes 2 ATP
• Important to the brewing and baking industries

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ANAEROBIC RESPIRATIONvs. AEROBIC RESPIRATION
Glucose
Glucose
Glycolysis in the cytoplasm
Glycolysis in the cytoplasm
pyruvate
pyruvate
pyruvate
pyruvate
Krebs Cycle
Electron Transport Chain
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ANAEROBIC RESPIRATIONvs. AEROBIC RESPIRATION
Pyruvate
Krebs Cycle
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Photosynthesis

• Photosynthesis
  process where plants use sunlight to make
  (glucose)
• The energy for life comes from the Sun

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Photosynthesis

• SUMMARY EQUATION
• 6CO2 6H2O
  ? C6H12O6 6O2
• Carbon dioxide water sunlight ?
  glucose oxygen

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Photosynthesis - starts with light
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Photosynthesis

• Chloroplasts organelles that carry on
  photosynthesis
• Follow the suns path.
• 1. Suns rays hits a leaf
• 2. Enters into a plant cell
• 3. Enters into a chloroplast
• 4. Enters into thylakoid membrane
• (where photosynthesis takes place)

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• Where in the
• Chloroplasts does
• Photosynthesis
• occur?

Thylakoid membrane
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They need one another
(glucose)
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Also during Photosynthesis Photolysis - the
process where sunlight splits water this. H2O
sunlight H O
electrons The Oxygen from photolysis
is the air we breathe
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Respiration and Photosynthesis
Respiration Photosynthesis
Organelle
Reactants
Produces
Organism
When does it take place?
Mitochondria
Chloroplast
Sunlight, CO2 and H2O
O2 and C6H12O6
Energy (ATP)
Food (C6H12O6)
Animals and Plants
Plants
Only during sunlight
All the time (24/7)