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Multiple Choice
In the process of glycolysis, how do cells oxidize glucose to extract energy?
A
By converting glucose into pyruvate, producing ATP and NADH
B
By directly converting glucose into carbon dioxide and water
C
By storing glucose as glycogen for later use
D
By using glucose to synthesize fatty acids
Verified step by step guidance
1
Understand that glycolysis is the metabolic pathway that converts glucose (C₆H₁₂O₆) into pyruvate (CH₃COCOO⁻ + H⁺), releasing energy in the form of ATP and NADH.
Recognize that glycolysis occurs in the cytoplasm of cells and is the first step in cellular respiration, which does not directly convert glucose into carbon dioxide and water.
Identify that during glycolysis, one molecule of glucose is broken down into two molecules of pyruvate, with a net gain of two ATP molecules and two NADH molecules.
Note that glycolysis does not involve the storage of glucose as glycogen; this is a separate process called glycogenesis.
Acknowledge that glycolysis does not directly involve the synthesis of fatty acids from glucose; this occurs through a different metabolic pathway called lipogenesis.