Question

what are the steps involved in the formation of lactic acid from glucose ??

Answer 1

6 carbon molecule broke down into pyurate (3 carbon molecule) than its is combine with lack of oxygen then lactic acid and energy is formed and this take place in muscle cell

Answer 2

The steps involved in the formation of lactic acid from glucose are described below:

• Some bacteria use pyruvic acid to make lactic acid. Animal muscle cells also exhibit this metabolic mechanism. During activity, muscle cells' oxygen supply for breathing may not be sufficient. Pyruvic acid is converted to lactic acid in anaerobic circumstances. When lactate dehydrogenase is present, this occurs. Additionally, a reducing agent like NADH+H+ is reoxidized to NAD+.

• A significant amount of the energy is not released throughout the fermentation process. Less than 7% of the energy in the glucose is released in this situation. Additionally, not all of it is contained within ATP's high energy bonds.
• In yeast cells and bacteria, fermentation typically occurs. As a result of insufficient oxygen delivery, animal muscle cells also exhibit lactic acid fermentation.
• In yeast, anaerobic conditions result in partial oxidation of glucose. This process turns pyruvic acid into ethanol and carbon dioxide. Through lactic acid fermentation, several bacteria convert pyruvic acid into lactic acid.

The formation steps are:-

1. The breakdown of the glucose or 6-carbon molecule produces glyceraldehyde 3-phosphate and 3-phosphoglyceric acid.
2. NAD+ is transformed into NADH+H+ throughout this process.
3. The 3-phosphoglyceric acid transforms into phosphoenol pyruvic acid, which then transforms into pyruvic acid.
4. In this procedure, net 2 ATP molecules are produced (glycolysis).
5. With the assistance of the reducing agent NADH+H+, which reoxidizes to NAD+, this pyruvic acid is converted to lactic acid.
6. Two pyruvate/pyruvic acid molecules are converted into two lactate/lactic acid molecules in this procedure. When lactate dehydrogenase is present, this reaction takes place.
7. The formation reaction described in the above picture

Hence, these are the steps involved in the formation of lactic acid from glucose.

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