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 conversion of the energy in foods to energy in atp. these reactions involving electron 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.

1. when a compound donates (loses) electrons, that compound becomes

compound is often referred to as an electron donor.

1. when a compound accepts (gains) electrons, that compound becomes

compound is often referred to as an electron acceptor.

1. in glycolysis, the carbon - containing compound that functions as the electron donor is
2. once the electron donor in glycolysis gives up its electrons, it is oxidized to a compound called
3. is the compound that functions as the electron acceptor in glycolysis.
4. the reduced form of the electron acceptor in glycolysis is

words: oxidized, oxygen, nadh, glucose, pyruvate, nad+, water, reduced

Explanation:

1. When a compound donates electrons, it is oxidized and becomes an electron - donor, so the answer is 'oxidized'.
2. When a compound accepts electrons, it is reduced and becomes an electron - acceptor, so the answer is'reduced'.
3. In glycolysis, glucose is the carbon - containing compound that functions as the electron donor, so the answer is 'glucose'.
4. Once the electron donor (glucose) gives up its electrons, it is oxidized to pyruvate, so the answer is 'pyruvate'.
5. The compound that functions as the electron acceptor in glycolysis is NAD⁺, which gets reduced to NADH. So the answer is 'NAD⁺'.
6. The reduced form of the electron acceptor in glycolysis is NADH, so the answer is 'NADH'.

Answer:

1. oxidized
2. reduced
3. glucose
4. pyruvate
5. NAD⁺
6. NADH