carbohydrates
↳ carbon, oxygen, hydrogen
functions (for more, pg 47 bio tb)
↳ provide energy for cell activities
↳ form supporting structures (cellulose, cell wall)
*carbs contain more oxygen in proportion to hydrogen compared to fats
basic unit of carbs
↳ simple sugar
↳ e.g. glucose, fructose
double sugar
↳ two simples combined
↳ e.g. maltose, sucrose
complex carbohydrates
↳ made up of many single sugars
↳ e.g. starch, cellulose, glycogen
↳ made up of many glucose molecules
plants store glucose
↳ in the form of starch
animals consume starch from plants
↳ digested, forms into glucose
↳ stored as glycogen when not in use
