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Why does Glycolysis and the Kreb's cycle do not capture all of the energy in a glucose molecule?
Wiki User
∙ 12y ago
i think Some energy is always lost as heat during chemical reactions
Wiki User
∙ 12y ago
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Explain why an initial investment of ATP is required for the prepatory steps of glycolysis?
In the first stage of glycolysis, there is an initial investment of ATP energy in breaking down a molecule of glucose. The phosphate from this ATP molecule (which later catabolizes to ADP) is transferred to the 6th carbon atom in the glucose molecule. Therefore, the initial investment of energy in glucose creates glucose-6-phosphate. What is so significant about glucose-6-phosphate? The phosphorylation of glucose makes it more reactive. Or you could think of it like this: What is the whole point of cellular respiration? It's to break down complex organic material to create energy, right? So a complex molecule, glucose for example, is difficult to break down in the first step. By energizing this glucose molecule, you are breaking the bonds. This breaking of bonds ultimately spurts the whole catabolysis reaction.
What substance is needed to begin glycolysis?
Glycolysis is the process that turns glucose into pyruvate. The energy released from this is then used to make the more readily usable ATP.
How many ATP molecules are produced per molecule of glucose during glycolysis?
In glycolysis two net molecules of ATP are formed. Four ATP are formed but two are required in the initial activation of glucose.
What is the first stage of cell respiration?
energy is captured form sunlight glycolysis
Which molecule are high-energy electrons from glycolysis and the Krebs cycle ultimately transferred to?
NADH
What are the starting molecules for glycolysis?
Glycolysis harvests chemical energy by oxidizing glucose to pyruvate improvement Glucose is starting molecule for glycolysis.
The first step in cellular respiration that splits a molecule of glucose to release energy is called?
Glycolysis.
At the end of glycolysis about 90 percent of the chemical energy is locked in the bonds of what molecule?
glucose molecule
What molecule stores the high energy removed from glucose in glycolysis?
Seriously? Read your textbook!!
What percentage of the energy contain in a molecule of glucose is captured in the bonds of ATP at the end of glycolysis?
90%
What happens to a glucose molecule when glycolysis occurs?
During Glycolysis, Glucosemolecules are split into two pyruvates during a sequence of enzyme-controlled reactions. This occurs in both aerobic and anaerobic respiration.
What two processes in glucose breakdown are anaerobic?
During glucose breakdown, glycolysis and fermentation occur anaerobically. Glycolysis breaks a glucose molecule into energy and pyruvate. Fermentation uses to the pyruvate to form either ethanol or lactate.
What is glycolysis broken down during?
glycogen, a close molecule to glucose which the body produces when it does not use the energy right away.
During the energy investment phase of glycolysis, how many ATP are required to continue with the reactions per glucose molecule?
Two
What provides the initial energy to break down glucose during glycolysis?
ATP provides energy to break down glucose during glycolysis.
What are the three carbon molecules when glucose is broken in half during glycolysis?
The 3-carbon molecule produced when glucose is broken in half in glycolysis is pyruvic acid. It gives energy to living cells through the Krebs cycle.
What are the required materials for glycolysis?
Glycolysis requires glucose, adenosine diphosphate, phosphate, and NAD+.
