Cell Respiration. How do we get energy from food? Cell Respiration – mitochondria break down food...
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Transcript of Cell Respiration. How do we get energy from food? Cell Respiration – mitochondria break down food...
![Page 1: Cell Respiration. How do we get energy from food? Cell Respiration – mitochondria break down food to make ATP (energy) Formula: C 6 H 12 O 6 + 6O 2 ----->](https://reader035.fdocuments.net/reader035/viewer/2022070401/56649f165503460f94c2bfab/html5/thumbnails/1.jpg)
Cell Respiration
![Page 2: Cell Respiration. How do we get energy from food? Cell Respiration – mitochondria break down food to make ATP (energy) Formula: C 6 H 12 O 6 + 6O 2 ----->](https://reader035.fdocuments.net/reader035/viewer/2022070401/56649f165503460f94c2bfab/html5/thumbnails/2.jpg)
How do we get energy from food?Cell Respiration – mitochondria break down
food to make ATP (energy)
Formula:C6H12O6 + 6O2 -----> 6CO2 + 6H20 + energy (heat and ATP)
1 glucose + 6 oxygen 6 carbon dioxide + 6 water + energy
![Page 3: Cell Respiration. How do we get energy from food? Cell Respiration – mitochondria break down food to make ATP (energy) Formula: C 6 H 12 O 6 + 6O 2 ----->](https://reader035.fdocuments.net/reader035/viewer/2022070401/56649f165503460f94c2bfab/html5/thumbnails/3.jpg)
3 Stages of Cell Respiration
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1.2. 3.
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3 Stages of Cell Respiration:1. Glycolysis
• Anaerobic – no oxygen required• Occurs in the cytoplasm• Glucose 2 pyruvic acids*• Net ATP production = 2
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3 Stages of Cell Respiration:
2. Citric Acid Cycle (a.k.a. Krebs Cycle)• Occurs in mitochondria, requires oxygen
(aerobic)• Net ATP production = 2
![Page 7: Cell Respiration. How do we get energy from food? Cell Respiration – mitochondria break down food to make ATP (energy) Formula: C 6 H 12 O 6 + 6O 2 ----->](https://reader035.fdocuments.net/reader035/viewer/2022070401/56649f165503460f94c2bfab/html5/thumbnails/7.jpg)
3 Stages of Cell Respiration:3. Electron Transport Chain
• Occurs in mitochondria, requires oxygen (aerobic)
• Net ATP = 32
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Electron Transport Chain Animation
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* If oxygen is not available, cell undergoes fermentation after glycolysis.
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2 Types of Fermentation
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2 Types of Fermentation:
1. Lactic Acid – lactic acid builds up in muscles when they do no get enough oxygen muscle fatigue
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Other Products?
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2 Types of Fermentation:
2. Alcoholic – yeast cells produce CO2 and ethyl alcohol (a.k.a. ethanol).
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Other Products?
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Aerobic vs. Anaerobic
AEROBIC CONDITIONS:
(oxygen present)
Cell Respiration
36 ATP
ANAEROBIC CONDITIONS:
(no oxygen)
Fermentation
2 ATP
Which is more efficient (which produces MORE energy)?