Question

What are the two phases of glycolysis called?

Answer 1

Hint: One molecule of glucose is transformed into two molecules of pyruvate, two hydrogen ions, and two molecules of water during glycolysis. The ‘high energy' intermediary molecules of ATP and NADH are synthesised during this process. Pyruvate molecules then continue to the link reaction, which results in the formation of acetyl-coA. After that, acetyl-coA enters the TCA cycle.

Complete answer:
Glycolysis starts with a single glucose molecule's six-carbon ring-shaped structure and finishes with two molecules of pyruvate, a three-carbon sugar.
Glycolysis is divided into two stages –
Energy investment phase – The glycolysis pathway's initial step retains the glucose molecule in the cell and utilizes energy to alter it so that the six-carbon sugar molecule may be divided equally into two three-carbon molecules. In this phase two molecules of ATP are utilized.
Energy payoff phase – The second stage of glycolysis takes energy from molecules and stores it as ATP and NADH, a reduced version of NAD. In this phase four molecules of ATP and two molecules of NADH are produced.

Additional information:
Heterotrophic cells can take glucose in two ways. Secondary active transport, in which the transfer occurs against a glucose concentration gradient, is one approach. The other method relies on a family of proteins known as GLUT proteins, or glucose transporter proteins.

Note:
The initial stage in the breakdown of glucose to obtain energy for cellular metabolism is glycolysis. Glycolysis is a component of the metabolism of nearly all living creatures. The process is anaerobic since it does not require oxygen. Glycolysis occurs in both bacterial and eukaryotic cells' cytoplasm. Glycolysis is a ten step reaction with unidirectional steps being the regulatory steps. A net yield of eight ATP is produced in this process.