Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
What is the functional group for polysaccharides?
The two important functional groups in most polysaccharides are the hydroxyl group and the acetal group.
Starch is a typical polysaccharide. Its partial structure is
There are many OH groups (alcohol or hydroxyl groups).
There is also the glycosidic linkage that joins C-1 of one ring to C-4 of the next ring.
It looks like an ether.
But it isn't an ether, because it has two O atoms attached to C-1 of the glucose unit. It is an acetal.
The general structure of an acetal is
It has a C, an H, and two OR groups directly attached to the central C atom.
So a polysaccharide contains both hydroxyl and acetal functional groups.