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Cellular Respiration Equation
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C6H12O6+6O2------ 6CO2+ 6H2O+Energy (40 ATP)
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What would happen without cellular respiration?
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Body temperature would not be a normal 98.6 degrees. Cellular Respiration is what generates a person's body heat
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What are ALL of the steps of cellular respiration?
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Redox Reactions
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Principle of Redox
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-Chemical reactions that transfer electrons between reactants
-Oxidation Reduction
*Redox during Cellular Respiration: The fuel is oxidized and oxygen is reduced
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When somehting LOSES an electron it becomes....
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OXIDIZED
(Xe-+Y-------X+Ye-)
*Use this to help you remember:
OIL= Oxidation Is Lost
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When something GAINS an electron it becomes.....
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REDUCED
*Use this to help you remember:
RIG= Reduction Is Gained
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In this equation:
(Xe-+Y-------X+Ye-)
What is Y?
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Y is the Oxidation Agent
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NAD+
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Serves as an electron carrier
*When NAD+ gains an electron: It becomes reduced (b/c: gaining electrons=reduction)
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The Three Stages of Cellular Respiration
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1. Glycolysis
2. The Citric Acid Cycle
3. Ocidative Phosphorylation
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Glycolysis
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-Breaks down glucose into two molecules of Pyruvate
-Essentially splits the glucose in half
-Starting point for ALL respiration
-Main Function: Transfer of Energy
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What are the inputs and outputs of Glycolysis?
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Inputs: 2ATP + ADP + Glucose + NAD+
Outputs: 2Pyruvate + 2ATP + 2NADH
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Where does glycolysis occur?
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-In the cytosol
*Glycolysis extracts 3% of energy found in glucose-- pretty inefficient
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What is the evolutionary perspective of glycolysis?
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-An aerobic atmosphere (Does not require oxygen)
-Prokaryotes- No organelles (happens in cytosol so no organelles
-Nearly universal
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ATP
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-Aribose Sugar (5 Carbon Sugar), an Adenine, and 3 Phosphate groups on the end
-Very UNSTABLE molecule
The phosphates do not like eachother so they repel
- Can't store ATP
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Describe what happens when a phosphate group is broken in the molecule of ATP
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-Releases energy that the cell can use
-ATP is negatively charged
-The remaining 2 Phosphates form to make ADP, spread out (which they like)
-Cellular Respiration will try to put the 3rd Phosphate lost during the break back on
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