Biology 9700 · AS & A Level · Carbohydrates and lipids

Carbohydrates and lipids — practice question

Galactogen is a storage polysaccharide found in certain animal species. It is a branched polymer made from β-galactose monomers. Which comparison between galactogen and another polysaccharide accurately states one similarity and one difference?

  • AGlycogen and galactogen are both branched, but glycogen is not a storage polysaccharide in animals.
  • BGlycogen and galactogen are both storage polysaccharides in animals, but glycogen is unbranched.
  • CCellulose and galactogen are both branched, but cellulose is a structural polysaccharide found in plants.
  • DAmylopectin and galactogen are both storage polysaccharides, but amylopectin is formed from α-glucose monomers.

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