Ribulose phosphate is a

$P$: Monosaccharides can pass through the cell membrane.
$Q$: Monosaccharides are the simplest carbohydrates.

Which biological molecule is represented by the given structural formula?

What is the general formula or structural formula of a polysaccharide?

Fructose is prepared commercially by the hydrolysis of $...$,a polysaccharide which occurs in dahlia tubers and Jerusalem artichokes.

The simplest form of carbohydrate is: