(N/A) The equation represents the process of glycolysis,which is the breakdown of glucose into pyruvic acid.
Definition: Glycolysis is the metabolic pathway that converts one molecule of glucose $(6C)$ into two molecules of pyruvic acid $(3C)$.
Origin: The term 'glycolysis' is derived from the Greek words 'glycos' (sugar) and 'lysis' (splitting).
History: The scheme of glycolysis was proposed by Gustav Embden,Otto Meyerhof,and $J$. Parnas,and is commonly known as the $EMP$ pathway.
Process Details:
$1$. Glycolysis occurs in the cytoplasm of the cell and is common to both aerobic and anaerobic respiration.
$2$. In plants,glucose is derived from sucrose (the end product of photosynthesis) or from storage carbohydrates.
$3$. Glucose and fructose are phosphorylated to form Glucose-$6$-phosphate by the enzyme hexokinase,consuming one $ATP$.
$4$. Glucose-$6$-phosphate isomerizes to Fructose-$6$-phosphate.
$5$. Fructose-$6$-phosphate is converted to Fructose-$1,6$-bisphosphate,consuming another $ATP$.
$6$. Fructose-$1,6$-bisphosphate splits into two triose phosphates: Dihydroxyacetone phosphate $(DHAP)$ and $3$-phosphoglyceraldehyde $(PGAL)$.
$7$. $PGAL$ is oxidized to $1,3$-bisphosphoglycerate $(BPGA)$,producing $NADH + H^+$ from $NAD^+$.
$8$. $BPGA$ is converted to $3$-phosphoglyceric acid $(PGA)$,generating $ATP$ via substrate-level phosphorylation.
$9$. Finally,Phosphoenolpyruvate $(PEP)$ is converted to Pyruvic acid,generating another $ATP$.
Net Yield: The net gain of energy in glycolysis is $2ATP$ and $2NADH + 2H^+$ per molecule of glucose.