Chapter 6

A catchall term for carbon-containing compounds that are characterized by a physical property- their insolubility in water.

Organic molecules that contain only hydrogen and carbon atoms.

Lipids can dissolve in organic solvents consisting of ______ compounds like benzene.

Are hydrocarbons polar or nonpolar?

Are nonpolar molecules hydrophilic or hydrophobic?How many total carbon atoms do fatty acids typically contian

A lipid consisting of a hydrocarbon cahin bonded at one end to a carboxyl group. Used by amny organisms to store chemcial energy; a major component of animal and plant fats and phospholipids

How many carbonon atoms do fatty acids tend to contain? (____-_____)

Any class of organic compounds composed of two or more units of hydrocarbons, with each unit consisting of five carbon atoms arranged in a specific pattern. These are important building blocks found in organisms.

Refering to lipids in which all the carbon-carbon bonds are single bonds. Such compounds have relatively high melting points.

Refers to lipids in which at least one carbon-carbon bond is a double bond. Double bonds produce links in hydrocarbon chains and decrease the compound’s melting point.

Occur when adjacent atoms come close enough that their outer electron clouds just barely touch.

The 3 most important types of lipids in cells:

A family of lipids disiguished by their bulky four-ring structure

Nonpolar molecules composed of three fatty acids that are linked to a three-carbon molecule called glycerol. (aka. triglycerides).

A three-carbon molecule that forms the “backbone” of phospholipids and most fats.

The covalent bond formed by a condensation reaction between a carboxyl group and a hydroxyl group. These linkages join fatty acids to glycerol to form a fat or phospholipid.

A class of lipids having a hydrophilic head (including a phosphate group) and a hydrophilic tail (consisting of two hydrocarbon chains). Major components of the plasma membrane and organelle membranes.

Substances that contain both hydrophilic and hydrophobic regions