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AP Biolo
Cellular Respiration
| Question | Answer |
|---|---|
| Which concerning the metabolic degradation of glucose (C6H12O6) to carbon dioxide (CO2) and water is true? | e. A, B, and C are correct. |
| Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present or absent? | glycolysis |
| d. The end products of glycolysis are CO2 and H2O.----True or False? | false |
| 2 ATP----> 2 ADP involves an exergonic or endergonic reaction? | endergonic |
| Substrate-level phosphorylation accounts for approximately what percentage of the ATP formed during glycolysis? | 100% |
| During glycolysis, when glucose is catabolized to pyruvate, most of the energy of glucose is | retained in the pyruvate |
| Starting with one molecule of glucose, the "net" products of glycolysis are?? | 2 NADH, 2 H+, 2 pyruvate, 2 ATP, and 2 H2O. |
| Glycolysis and fermentation occur in the __________ of the cell. | cytosol |
| Which metabolic pathway is common to both cellular respiration and fermentation? | glycolysis |
| How many molecules of carbon dioxide (CO2) would be produced by five turns of the citric acid cycle? | 10 |
| How many reduced dinucleotides would be produced with four turns of the citric acid cycle? | 4 FADH2 and 12 NADH |
| Cellular respiration harvests the most chemical energy from _____________ ___________? | chemiosmotic phosphorylation |
| Inside an active mitochondrion, most electrons follow which pathway? | citric acid cycle --> NADH ---> electron transport chain--- > oxygen |
| During oxidative phosphorylation, H2O is formed. Where does the oxygen for the synthesis of the water come from? | molecular oxygen(02) |
| Which metabolic process is most closely associated with intracellular membranes? | oxidative phosphorylation |
| When hydrogen ions are pumped from the mitochondrial matrix across the inner membrane and into the intermembrane space, the result is the | creation of a proton gradient |
| Each time a molecule of glucose (C6H12O6) is completely oxidized via aerobic respiration, how many oxygen molecules (O2). are required? | 6 |
| Phosphofructokinase is an allosteric enzyme that catalyzes the conversion of fructose-6-phosphate to fructose-1,6-bisphosphate, an early step of glycolysis. In the presence of oxygen, an increase in the amount ATP in a cell would be expected to | inhibit the enzyme and thus slow the rates of glycolysis and the citric acid cycle. |
Created by:
rungurl24
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