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Lipids

Max Is Cooler than Hannah
by

Hannah Black

on 2 October 2014

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Transcript of Lipids

lipids that are liquids at room temperature are oils.
made from two kinds of molecules, glycerol and three fatty acids joined by dehydration synthesis.
Waxes
many plants have a wax covering on their stems to lock in moisture.
some animals have wax-coated fur to repel water.
earwax is to help keep foreign diseases out of the ear canal.
Fats
Monomers
Fatty acids
Glycerol molecules
Assembled
Lipids are assembled from a molecule of glycerol that is attached to one, two, or three fatty acids
All lipids are made up of these elements
Carbon
Hydrogen
Oxygen
All lipids are hydrophobic
Waxes:
Lipids
About Lipids
Foods That Contain Lipids
Lipids
Tatiana Milledge,
Jack James,
Hannah Black
and Maxwell Nichols
Steroids
most important class of lipids
contains cholesterol, sex hormones, and cortisone.
comprised of an ester of a long-chain of alcohol and a fatty acid.
do not contain fatty acids
composed of two fatty acids, a glycerol unit, a polar molecule, and a phosphate group
fatty acid tail is
hydrophobic
phosphate and polar head region of the molecule is
hydrophilic
major component of cell membrane
encloses cytoplasm and other cell contents
Phospholipids
Oils
fats are composed of three glycerol and fatty acids
solid or liquid at room temperature
liquid= Oils
solid=Fats
store energy
insulates the body
cushions and protects organs
Hydrophilic:
Attracted to water
Hydrophobic:
Repelled by water
Foreign Material
Foreign Material
Foreign Material
Foreign Material
Foreign Material
Earwax
Elements
Oils:
Earwax
Steroids:
Phosphlipids:
Fats:
Lipids are in you
How They Are Used
Extra calories consumed in your day are stored as lipids in adipose cells
Insulates and protects the body
Your body relies on their storage to provide energy during exercise
Builds and maintains cell membranes
Hormone regulation
Helps fat soluble vitamins absorb into the body
How do Our Bodies Make Them?
When our bodies decide they need to store energy from food intake
The Shape
It keeps molecules in place so they do not diffuse by maintaining cell wall
Energy
Provide a main energy source to the human body
Lipids yield 9 k/cal of energy per gram
Kcal:
Kilo Calorie
Reactions
Metabolism occurs when a cell is being formed
Full transcript