lipids - fats - triglycerides ect.

lipids

hydrophobic/non polar

4 lipids

1. triglycerides

2. cholesterol/steroids

3. phospholipids

4. waxes

what makes up triglycerides

glycerol + 3 fatty acids

where is the energy found in triglycerides

stored in bonds

more bonds = more energy

what is the OH is glycerol

alcohol

function of triglycerides

• long term energy (X2 as much as carbs have)

• insulation

• cushion organs

saturated fat is for

animals

unsaturated fat is for

plants

saturated fat at room temperature

solid

saturated fats affect of ppl

neutral

structure for saturated fats

• single single

• more hydrogen

• straight

structure for unsaturated fats

• has double bonds

• less hydrogen

• bends

unsaturated fats affect of humans

good for you - clear cholesterol

unsaturated fats at room temperature

oils ( olive oil)

monounsaturated

one double bonds in unsaturated fats

polysaturated

more than one double bond in unsaturated fats

hydrogenation

• have transfats

• created by breaking bonds & forcing Hydrogen into it

phospholipids function

• make up cell membrane

• act as a barrier

phospholipids structure

phosphate + glycerol head

fatty acid tail

phospholipids tails are

• 1 unsaturated tail

• 1 saturated tail

phospholipids heads are

hydrophilic

phospholipids tails are

hydrophobic

Waxes function

prevent H2O loss

cholesterol function

• precursor for steroids

• in cell membrane

steroids

1. testosterone

2. estrogen

HDL

good - clears LDL

LDL

bad (lousy)