Why is phosphorylation significant?
1 Answer
Phosphorylation is significant because the phosphate bond formed during this process stores energy. Most of the molecules react in phosphorylated form.
Explanation:
Phosphorylation is the attachment of phosphate group to an organic molecule. It makes certain molecules to take part in metabolic reaction.
Fructose is broken down into pyruvic acid during glycolysis. It does not react as such. First of all it is phosphorylated and is converted into fructose 1-6 diphosphate. Fructose enters glycolysis as fructose 1-6 diphosphate.
Phosphorylation is significant for the synthesis of ATP molecules which stores energy.
The stored chemical energy in glucose molecule can’t be used in cell activity or in endothermic reactions.
The stored chemical energy in glucose is released during aerobic respiration and is used for conversion of ADP into ATP molecules by attachment of phosphate group as the phosphate bond formed between ADP and phosphate group is energy rich bond.
ATP molecules store energy in usable form. ATP molecule is converted into ADP molecule, releasing energy for use in cellular activity or metabolic reactions needing energy.
Thus ATP and ADP molecules are often called currency of energy.
