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- From what molecule do we derive most of our energy and why is this molecule important?
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- Why do some reactions in metabolic pathways occur, even though the change in standard free energy is positive?What convenient form of chemical energy is used by all cells?Why is it beneficial for the cells to use ATP rather than directly using the energy stored in the bonds of carbohydrates to power cellular reactions ? What are the greatest drawbacks to harnessing energy from the bonds of several different compounds ?
- Why is it beneficial for cells to use ATP rather than energy directly from the bonds of carbohydrates? What are the greatest drawbacks to harnessing energy directly from the bonds of several different compounds?Why is ATP popular as an energy producing moleculeWhat is NAD and NADH and why are they important?
- The movement of energy between living organisms is a matter of atoms, molecules and compounds being built into larger molecules or being broke into smaller ones. Reviewing the two equations for energy transference, which one is building energy? 6CO2 + 6H2O + energy --------> C6H12O6 + 6O2 C6H12O6 + 6O2 ---------> 6CO2 + 6H2O + energyWhy does the hydrolysis of ATP to ADP involve the release of energy?How many electrons are removed from sugar (CH12O6) during cell respiration when it is broken into 6CO, and water? Cells need a special molecule called ATP to do the work of life. Assume that the energy of one electron from food (CH12O) can be transformed into the energy of 3 ATP molecules. How many ATP molecules are generated by the breakdown of one sugar molecule during cell respiration?