Question

Glycolysis is which of the following kind of a process?
A. Amphoteric
B. Reductive
C. Oxidative
D. Oxidoreductive

Answer 1

The process by which one molecule of glucose is converted to two molecules of pyruvate, two molecules of water and two ions of hydrogen. With the help of this process, high energy molecules like ATP and NADH are released. Followed by the conversion, pyruvate molecules undergo link reaction to form acetyl-coA.

Complete step by step answer:
- Glycolysis is an oxidoreductive process that takes place in the cytosol of all living cells. It is common to both the aerobic and anaerobic process. When respiratory substrates are reduced to pyruvic acid, ATP and NADH2 are released. In glycolysis, the conversion of NAD to NADH2 is an oxidative process. The substrate gets reduced and NAD is oxidised.

Additional information:
- An amphoteric substance is a substance that can act both as an acid as well as a base. Acids are capable of donating protons whereas bases are capable of accepting protons. An amphoteric substance can do either of them.
- Reductive process is the process by which electrons are added up to the atom or ion by the removal of oxygen atoms or by the addition of hydrogen atoms. It always takes place by the oxidation of a reducing agent.
- Oxidative process is a process which takes place by the transfer of one or more electrons from an electron donor to an acceptor which leads to the conversion of both the oxidant and reductant.
Hence, option D: Oxidoreductive is the correct answer.

Note: During the process of glycolysis, four molecules of ATP are released out of which two of them are used during this process for a gain of two ATP molecules. Glycolysis can be divided into two major divisions namely, energy requiring step and energy releasing step.