NEETBotanyRespiration in Plants
What happens to glucose and fructose after they are formed from sucrose?
Options
- AThey are stored as glycogen
- BThey enter the glycolytic pathway
- CThey are converted into sucrose
- DThey are broken down into starch
Correct answer
B. They enter the glycolytic pathway
Step-by-step solution
Sucrose is converted into glucose and fructose by the enzyme, invertase, and these two monosaccharides readily enter the glycolytic pathway . Glucose and fructose are phosphorylated to give rise to glucose-6- phosphate by the activity of the enzyme hexokinase. This phosphorylated form of glucose then isomerises to produce fructose-6- phosphate. Subsequent steps of metabolism of glucose and fructose are same. The various steps of glycolysis are depicted in Figure 12.1. In glycolysis, a chain of ten reactions, under