The prefix "activated" usually means condensation of a sugar molecule like glucose with a nucleotide. Examples are uridine-5'-diphosphate (UDP) for activation of glucose, galactose or N-acetylglucosamine, guanosine-5'-diphosphate (GDP) for mannose or fucose and cytidine-5'-monophophate (CMP) for sialic acid.

Activation of sugars helps in biochemical transfer of sugar molecules to certain structure, e. g. N-glycans.

Todd Evan Garabedian has written:

'The use of uridine diphosphate and adenosine diphosphate as direct photoaffinity probes of the active site of smooth muscle myosin' -- subject(s): Pyrophosphates

organic

adenosene diphosphate

Sucrose is not a monosaccharide as galactose.