In glycolysis glucose is ______ and oxygen is ______.

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Multiple Choice

In glycolysis glucose is ______ and oxygen is ______.

During glycolysis, glucose is oxidized as it is converted to pyruvate, and electrons are transferred to NAD+, forming NADH. This pathway does not use molecular oxygen, so oxygen is not involved in the reaction and is not reduced or oxidized. In other words, oxygen remains unchanged during glycolysis. The statement that glucose is oxidized and oxygen is reduced would imply oxygen participates as the electron accepter in glycolysis, which it does not; oxygen’s role comes later in cellular respiration, where it can be reduced to water. So the concept you should take away is that glucose is oxidized in glycolysis, and oxygen is unchanged.

During glycolysis, glucose is oxidized as it is converted to pyruvate, and electrons are transferred to NAD+, forming NADH. This pathway does not use molecular oxygen, so oxygen is not involved in the reaction and is not reduced or oxidized. In other words, oxygen remains unchanged during glycolysis. The statement that glucose is oxidized and oxygen is reduced would imply oxygen participates as the electron accepter in glycolysis, which it does not; oxygen’s role comes later in cellular respiration, where it can be reduced to water. So the concept you should take away is that glucose is oxidized in glycolysis, and oxygen is unchanged.

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