Glucose
glucose.
Glucose!
A single molecule energy of the sugar glucose stores more than 90 times the chemical energy of a molecule of ATP.
Glucose is more efficient for cells to keep only a small supply of ATP on hand because a single of molecule of the sugar glucose stores more than 90 times the chemical energy of a molecule of ATP.
Energy is measured in calories. 2 ATP gives a gain of 14 kcal. The glucose in glycolysis that grants these ATP is worth 686 kcal. Therefore, only about 2 percent of the energy is released.
90%
After glycolysis, there is no more glucose. The name glycolysis means "sugar splitting," and that's just what it does. It takes one glucose and splits it into two molecules of pyruvate, generating two ATPs as it goes. Following the short reaction when entering the mitochondria, the acetyl CoA (a form of the pyruvate) goes through the Krebs Cycle (or Citric Acid Cycle). Through a series of reactions, the energy is taken and incorporated into ADP to make ATP. Some of the energy will also go to NAD+ to form NADH (and some to FAD+ to form FADH2). These electron carriers then go to the Electron Transport Chain (ETC) to make the most ATPs in respiration through oxidative phosphorylation.
90 times more energy
Glucose
A glucose molecule can store much more energy than a molecule of ATP. Through cellular respiration, the energy stored in glucose is transferred to ATP molecules. ATP molecules then travel to the locations in the cell that need the energy.
One molecule of glucose stores 90 times the amount of chemical energy than one molecule of ATP.
A single molecule energy of the sugar glucose stores more than 90 times the chemical energy of a molecule of ATP.
A single molecule energy of the sugar glucose stores more than 90 times the chemical energy of a molecule of ATP.
Glucose is more efficient for cells to keep only a small supply of ATP on hand because a single of molecule of the sugar glucose stores more than 90 times the chemical energy of a molecule of ATP.
Energy is measured in calories. 2 ATP gives a gain of 14 kcal. The glucose in glycolysis that grants these ATP is worth 686 kcal. Therefore, only about 2 percent of the energy is released.
90%
40 %
A single molecule of the sugar glucose stores more than 90 times the chemical energy of a molecule of ATP. Therefore, it is more efficient for cells to keep only a small supply of ATP on hand. Cells can regenerate ATP from ADP as needed by using the energy in foods like glucose.
Pyruvate is used to generate ATP