biol 1001 Lesson 5

biol 1001 Lesson 5 - Biol 1001 Lesson 5 How Cells Harvest...

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Biol 1001 Lesson 5 How Cells Harvest Chemical Energy 1) Write the formula for cell respiration. Why is energy harvested in many small steps instead of one or two large ones? Energy is harvested in many small steps in stead of one more two large steps to help reduce disorder and randomness in the universe 2) Construct a chart to compare and contrast the two methods of forming ATP. What are the benefits of each? Involves the cell membrane? Function Chemiosmosis Yes Comple x Cells use potential energy in concentration gradients to make ATP Substrate Level Phosphorylation No Simple An enzyme transfers a phosphate group from an organic substrate molecule to form ATP 3) Write out two different redox reactions in cell respiration. Indicate which molecules have been oxidized and which have been reduced. 4) Cell respiration has three parts: Glycolysis, the Krebs cycle, and the electron transport chain. Tell where in the cell each is found, the molecule(s) that enter each, the molecules at the end of each, and the amount of ATPs harvested from each. Location Molecules that Enter Molecules that Exit # of ATP Glycolysis Cytoplasmic Fluid Glucose 2 Pyruvic Acid, 4 NADH 2 ATP Krebs Cycle Mitochonria 2 Acetyl CoA 6 NADH, 2 FADH 2 2 ATP E.T.C. Cell Membrane 10 NADH, 2 FADH 2 34 ATP 38 TOT AL 1
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biol 1001 Lesson 5 - Biol 1001 Lesson 5 How Cells Harvest...

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