Biology 9700 · AS & A Level · Carbohydrates and lipids

Carbohydrates and lipids — practice question

Which two statements are correct? A In carbohydrates, carbon and oxygen are present in a $2:1$ ratio. Triglycerides are water-soluble. B Glycolipids occur in all cell surface membranes. Plants store carbohydrates as starch. C Every phospholipid has two saturated hydrocarbon chains. Polysaccharides count as polymers. D The formation of a glycosidic bond releases water. Each phospholipid contains three ester bonds.

  • AA
  • BB
  • CC
  • DD

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