Q. The stage upto which glycolysis and fermentation is common :
- Dihydroxyacetone.
- 3-phosphoglyceradehyde.
- Pyruvate.
- Glucose-6-phosphate.
Solution :
Correct option : C Glycolysis is the first step in the process of respiration. Glycolysis does not consumes any oxygen nor it releases any carbon dioxide. During glycolysis one molecule of glucose is broken into two molecules of pyruvate. The pyruvic acid formed after glycolysis may be completely oxidised into carbon dioxide and water as in aerobic respiration or may be incompletely broken down into ethyl alcohol or lactic acid during fermentation process.