Which prosthetic group is present in glycoproteins?

During the curdling of milk,what happens to the sugar present in it?

The following compounds differ in respect of

Starch is formed by the linkage of which carbons of glucose units?

Cellulose upon acetylation with excess acetic anhydride $/$ $H_2SO_4$ (catalytic) gives cellulose triacetate whose structure is

The reaction of $D$-glucose with ammoniacal $AgNO_3$ produces: