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Where does glycolysis occur within a cell?
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8. Respiration
Glycolysis
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What occurs during glycolysis?
A
Glucose is broken down into pyruvate, producing ATP and NADH.
B
Fatty acids are broken down into acetyl-CoA, producing NADH.
C
Pyruvate is converted into acetyl-CoA, releasing carbon dioxide.
D
Glucose is synthesized from pyruvate, consuming ATP.
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Glycolysis is the first step in the process of cellular respiration, where glucose is broken down in the cytoplasm of the cell.
The process begins with a single glucose molecule, which is a six-carbon sugar, and involves a series of ten enzymatic reactions.
During glycolysis, glucose is converted into two molecules of pyruvate, each containing three carbons.
As glucose is broken down, energy is released and captured in the form of ATP (adenosine triphosphate) and NADH (nicotinamide adenine dinucleotide).
The net gain from glycolysis is two ATP molecules and two NADH molecules per glucose molecule, which are used in later stages of cellular respiration.
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