What is the major structural difference between starch and glycogen Quizlet?
                                
                                
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                                    3 min read                                
                            
                                According to biology review materials like Quizlet, the primary difference often cited between these two polysaccharides is the amount and arrangement of their branching. Both are polymers of glucose and serve as energy storage, but their distinct structures reflect the evolutionary pressures of their respective organisms: plants for starch and animals for glycogen.