lips and proteins Flashcards
what are lipids
long term storage for energy
glycogen build up ➡️ converts extra carbs to fat
what carrier is a lipid for
vitamins
what material are lipids for
hormone synthesis
lipid structure
non polar: can’t dissolve
what structural units are lipids formed of
- glycerol
- fatty acids
( combined with dehydration synthesis)
triglycerides
glycerol + fatty acids
Removal of water during synthesis
fats
triglycerides that are solid at room temp
saturated fats
single bonds between carbon atoms
hard to break down (strong)
comes from animals sources ex. butter
oils
triglycerides that’s are liquid at room temperature
unsaturated fats: double bonds between atoms
easily broken down
form plant sources ex. olive oil
phospholipids
glycerol and 2 fatty acids
composed of phospholipid bilayer: cell membrane
is the head of a phospholipid polar or nonpolar
polar
is the tail of a phospholipid polar or nonpolar
nonpolar
waxes
long chain fatty acids joined to long chain alcohols of carbon rings that are non polar
protein
hemoglobin (carrying o2)
polypeptides folded into 3d shapes
what are proteins composed of
carbon
oxygen
hydrogen
amino acids
essential amino acids must come from food
primary protein structure
unique sequence of amino acids in the chain
secondary protein structure
formed by hydrogen bonds between peptide chains
tertiary protein structure
bending/folding due to interaction of R groups
quaternary protein structure
large proteins
2 or more polypeptides
2 polypeptides in quaternary structure are called
dimer
4 polypeptides in quaternary structure are called
tetramer
proteins fold:
spontaneously to be most stable
coagulation
permanent change, can never go back to original form
ex. boiled egg
absorption of lipids, proteins, and monomers is where
small intestine
where is the chemical digestion of lipids? 
small instestine
where is the chemical digestion of carbohydrates?
mouth
