Lipids

Triglycerides are typically utilized as ______ _______ molecules.

energy storage

Lipids are NOT soluble in ______ substances but WILL dissolve in _________ solvents.

polar, nonpolar

What are the biologically important kinds of lipids?

1) Triglycerides 2) Phospholipids 3) Sterols

Triglycerides are fats and oils that are typically used as dense ______ _______ molecules.

energy storage

Triglycerides have THREE ____ _____ all connected to a ________ backbone.

fatty, acids, glycerol

A triglyceride fatty acid that has its carbons bonded to as many hydrogens as it could possibly hold is called what?

saturated

A triglyceride fatty acid that has its carbons bonded to hydrogens in addition to containing carbon double bonds is called what?

unsaturated

SATURATED triglycerides are predominantly linear in shape and compact tightly as a result making it _____ at room temperature

solid

UNSATURATED triglycerides have a kink in the tail not allowing tight packing resulting in space making it a _____ at room temperature.

liquid

A fat is __________ while oil is _____________.

saturated, unsaturated

Phospholipids have a ________ backbone but have TWO ______ ______ and a SINGLE _________ group.

glycerol, fatty acids, phosphate

Triglycerides are _________ molecules (hydrophobic) while phospholipids are __________ (both polar and nonpolar at the same time)

nonpolar, amphipathic

Phospholipids will come together in a favored configurations called _______ and __________ ______ (make up cell membrane).

micelles, phospholipid bilayers

Sterols have a multi-____ structure

ring

Sterols get into the cell membrane and help to ________ the membranes allowing rigidity and fluidity (especially important for organisms with no cell wall like animals).

stabilize

What are two types of sterols?

cholesterol and ergosterol