Possible Pathways of Making Energy

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Possible Pathways of Making Energy
FERMENTATION AND CELLULAR RESPIRATION NOTES
Step 1
Aerobic WITH oxygen
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LACTIC ACID FERMENTATION

• Performed by some fungi, some bacteria, and
  sometimes by our muscles

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LACTIC ACID FERMENTATION

• Products include cheese, yogurt, and very sore
  muscles!

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Alcohol Fermentaion

• Performed by yeast and some kinds of bacteria.

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Alcohol Fermentaion

• Products include CO2 and Ethanol
• Used to make beer, bread and wine

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• Alcohol Fermentation (w/o oxygen)
• C6H12O6 2 C2H5OH 2 CO2 2ATP

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Alcoholic Fermentation
Sugar
Yeast / Temp
Alcohol
Time (hours)
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Aerobic
Anaerobic

• Examples
• In muscle cells while exercising.
• Dairy products

Example 1. To make alcoholic beverages using
yeast sugars.
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• Aerobic Respiration process in which oxygen is
  used by living cells to release the energy stored
  in food.
• Takes place in the mitochondria of eukaryotes,
  and in the cell membrane of prokaryotes
  (bacteria).
• Yields approximately 36-38 ATP.

• C6H12O6 6 O2 6 H2O 6 CO2 36 ATP

respiration song
Movie about respiration

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Draw and Label a Mitochondria

• Matrix Pyruvate broken down into CO2 and H2O
• Cristae 34 ATP Produced
• Flash animation highlighting Cristae

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Cellular Respiration Review

• Glycolysis occurs in cytosol breaks down
  glucose into pyruvate. Makes 2 ATP.
• Pyruvate is then broken down further in the
  mitochondria to produce Water, Carbon Dioxide and
  32-34 ATP.

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Cellular respiration- 3 steps

• Glycolysis occurs in cytosol breaks down
  glucose into pyruvate. Makes 2 ATP.
• Krebs Cycle In mitochondrial matrix pyruvate
  broken down into carbon dioxide and electrons are
  carried to Electron Transport chain.
• Makes 2 ATP.
• Electron Transport
• Chain inner membrane of
  mitochondrion electrons
  passed to oxygen and
  32-34 molecules of
  ATP
  are made.

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Respiration Animations Animation of electron
transport chain and atp synthesis Online
tutorial for respiration with animations
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• Which of these 3 release energy to organisms?
• Which captures energy stores it?
• Which uses oxygen to yield more energy?
• How much more energy?
• Which doesnt use oxygen?
• How does respiration compare to photosynthesis
  when referring to
• energy? Carbon dioxide? Oxygen?
• Compare Respiration Fermentation in Lab using
  given data.

• Summary
• Photosynthesis- used in plant kingdom
• 6 CO2 6H2O C6H12O6 6 O2
• Respiration- used in highly organized organisms.
  (oxygen)
• C6H12O6 6 O2 6H2O 6CO2 36ATP
• Fermentation- used in yeast bacteria. No oxygen
• C6H12O6 2 C2H5OH 2CO2 2ATP