Question

part a - redox (oxidation - reduction) reactions in glycolysis
in glycolysis, as in all the stages of cellular respiration, the transfer of electrons from electron donors to electron acceptors plays a critical role in the overall conversio transfers are known as oxidation - reduction, or redox, reactions.
drag the words on the left to the appropriate blanks on the right to complete the sentences.
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1. when a compound donates (loses) electrons, that compound becomes oxidized. such a compound is often referred to as an electron donor.
2. when a compound accepts (gains) electrons, that compound becomes reduced. such a compound is often referred to as an electron acceptor.
3. in glycolysis, the carbon - containing compound that functions as the electron donor is
4. once the electron donor in glycolysis gives up its electrons, it is oxidized to a compound called
5. is the compound that functions as the electron acceptor in glycolysis.
6. the reduced form of the electron acceptor in glycolysis is

Explanation:

• In glycolysis, glucose is oxidized (loses electrons) and acts as the electron donor.
• When glucose gives up electrons, it is oxidized to pyruvate.
• NAD+ is the electron - acceptor (gains electrons).
• When NAD+ gains electrons, it is reduced to NADH.

Answer:

1. glucose
2. pyruvate
3. NAD+
4. NADH