Ketoses can isomerize into an aldose when the carbonyl group is located at the end of the molecule.
12.
A typical rearrangement reaction is that between the aldose glyceraldehyde and the ketose dihydroxyacetone in a chemical equilibrium.
13.
"' Seliwanoff s test "'is a chemical test which distinguishes between aldose and ketose sugars.
14.
The systematic name of this enzyme class is "'hydroxypyruvate aldose-ketose-isomerase " '.
15.
The resulting molecule has an hemiacetal or hemiketal group, depending on whether the linear form was an aldose or a ketose.
16.
Aldose reductase is also present in the lens, retina, Schwann cells of peripheral nerves, placenta and red blood cells.
17.
The systematic name of this enzyme class is "'11-deoxycorticosterone aldose-ketose-isomerase " '.
18.
The systematic name of this enzyme class is "'D-glucuronate aldose-ketose-isomerase " '.
19.
This isomerization of a ketose to an aldose proceeds through an " cis "-enediol ( ate ) intermediate.
20.
Although aldose reductase can also detoxify methylgloxal, the glyoxalase system is more efficient and seems to be the most important of these pathways.
