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Molecules which have sugar chain(s) (aka glycans) attached to something else – like a protein or a lipid. This teamwork is accompanied by team names that can be confusing…⠀The order of the names of these “hybrids” indicates which is dominant – the first one is the minor component and the last one is the main component. So, glycoproteins are proteins with sugar chains attached; proteoglycans are sugars with a sprinkling of protein; peptidoglycans are sugars with some peptides helping link them together; and glycolipids are sugars linked to the lipid molecules making up membranes.