Lipids Flashcards
What are lipids
a very diverse group of fatty, water insoluble, molecules
What do lipids function as
stored energy, components of cellular membranes, and hormones
Triglycerides are also known as
neutral fats
What are the 4 primary classes of lipids
triglycerides, phospholipids, steroids, and eicosanoids
Lipids are the only biomacromolecules that are not composed of what
Polymers
What is the most common form of lipid in all living things
Triglycerides
What forms a triglyceride
A glycerol molecule and 3 fatty acids.
Glycerol is made of
A 3-carbon molecule with a hydroxyl functional group attached to each carbon.
A fatty acid is composed of
A long chain of hydrocarbons with a carboxylic functional group on one end.
Triglyceride molecules form by the process of what
Dehydration Synthesis
Functions of trigylcerides
Long-term energy storage in adipose connective tissue, structural support, cushioning, and insulation of the body.
How many double bonds does a saturated fatty acid have? Are they solid or liquid at room temp?
They have no double bonds and are usually solid at room temp.
How many double bonds does an unsaturated fatty acid have? Are they solid or liquid at room temp?
They have on double bond and are usually liquid at room temp.
How many double bonds do polyunsaturated fatty acid have?
They have two or more double bonds.
Lipogenesis occurs through what
the process of dehydration
