Chemistry - Biomolecules Question with Solution | TestHub

Isomers have the same chemical formula but different structural formulas. Glucose and fructose both are monosaccharides with six carbons but due to presence of different functional groups (glucose has aldehydic group and fructose has ketonic group) have different structures. 3PGA and 2PGA are phosphoglyceraldehydes with phosphate at third carbon and second carbon respectively and hence have different structures. PGAL is phosphoglyceraldehyde and DHAP is dihydroxyacetone phosphate and has aldehydic and ketonic functional groups, respectively. All the above three examples are thus isomers.