A molecule containing one unit of sugar is called a ?

A molecule that comprises a single sugar unit and usually has the formula C6H12O6. While some monosaccharides have the same molecular formula, their differences in structural formula (the way in which their atoms are arranged within the molecule) is what creates their differences in properties.

Carbohydrate

Explanation: Carbohydrates containing one or two sugar units are referred to as simple carbohydrates. Carbohydrates containing many sugar molecules are called complex carbohydrates Simple carbohydrates.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme