2.6 describe the structure of carbohydrates, proteins and lipids as large molecules made up from smaller basic units: starch and glycogen from simple sugar; protein from amino acids; lipid from fatty acids and glycerol

(you do not need to learn the diagrams, I just put them there for better understanding)

Carbohydrates (starch and glycogen)
simple sugars (monosaccharides), such as glucose (a basic carbohydrate), join together to make more complex polysaccharides and disaccharides...



Proteins
proteins are made up of amino acids


Lipids
made from three fatty acids and glycerol