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Chap. 8 & 9

Enzymes and Cellular Respiration

QuestionAnswer
What are the 3 steps of Cellular Respiration? Glycolysis, Citric Acid(Krebs)Cycle, and Oxidative Phosphorylation(Electron Transport Chain)
What are 5 factors that can change the speed of enzyme reactions? Temperature,pH,substrate concentration, competitive inhibitors, and non-competitive inhibitors
What are the electron carriers in cellular respiration? NAD+/NADH and FAD/FADH2
How many ATP does each NADH create in the electron transport chain? 3 ATP
What type of reactions build complex molecules from simpler ones such as photosynthesis? Anabolic reactions
What type of reactions release energy? Exergonic reactions
Why are enzymes said to be specific? Because each enzyme has a specific substrate that only it will react with. The active site of the enzyme must match with the shape of the substrate or else they will not fit with each other.
What kind of inhibitors bind with the enzyme, but at a location that is not the active site,and change the shape of the active site? Noncompetitive Inhibitors
What is the main comparison between Cellular Respiration and Fermentation? Both use glycolysis to break down glucose into pyruvates and make ATP.
Which law of thermodynamics deals with a change in entropy? The 2nd- entropy is disorder/randomness. As energy is transformed it gives off heat and the molecules incress the randomness.
Where does the citric acid cycle take place? the matrix of the mitochondria
Oxidation is... Loss of Electrons
What is reduced in cellular respiration? Oxygen. It is given the electrons oxidized from glucose and bonds to make water.
Around how many ATP's should cellular respiration generate? 38 ATP's
What creates the proton motive force? the H+(protons) that were pumped into the inter membrane space want back in because the inter membrane space has a high concentration and the matrix has high concentration. This contributes to chemiosmosis.
Created by: nicole52806
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