Carbohydrates Flashcards
carbohydrates
CH2O ; for fuel and building material
ratio carbon ; hydrogen ; oxygen
1 : 2 : 1
monosaccharides
glucose
about 3 - 7 carbon
disaccharides
2 monosaccharides by dehydration reaction
(lactose, maltose, sucrose)
polysaccharides
multiple saccharides
starch (sugar in plant), glucogen (glucose in human), cellulose (cell wall), chritin (nitrogenous carbohydrates)
lipids
fat, oil, wax, phospholipid, steroid
hydrophobic
don’t mix with water
fats
glycerol (alcohol) and fatty acid (16-18 carbons in length)
tricacyglycerol
3 fatty acids
saturated fatty acids
no double bonds between carbons
unsaturated fatty acids
1 or more double bonds between carbons
phospholipids
in cell membrane
2 fatty acids (glycerol and phosphate)
steroids
cholesterol
used for animal cell membrane and vertebrate sex hormones
lactose
glucose + galactose -> lactose + water
maltose
glucose + glucose -> maltose + water