Hydrolysis and
phosphorolysis are mechanisms of cleaving covalent bonds
using water or phosphoric acid, respectively (Figure
13.15). Glycogen phosphorylase uses phosphorolysis
to cleave the
(1->4) linkages between glucose
units in glycogen, whereas
-amylase uses hydrolysis
to cleave the
(1->4) linkages in starch (e.g.,
amylose and amylopectin)
and glycogen.
See also: Glycogen
Phosphorylase,
-Amylase