Chapter 3: Lipids Flashcards Preview

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Flashcards in Chapter 3: Lipids Deck (14):
1

water-insoluble, primarily nonpolar biological molecules composed mostly of hydrocarbons

lipids

2

three types of lipid molecules?

neutral lipids, phospholipids, steroids

3

found in cells as energy-storage molecules, have no charged groups

neutral lipids

4

two types of neutral lipids?

oils and fats

5

contains a single hydrocarbon chain with a carboxyl group

fatty acid

6

fatty acid binds the maximum possible number of hydrogen atoms

saturated

7

if one or more double bonds link the carbons

unsaturated

8

fatty acids combine with long-chain alcohols or hydrocarbon structures
-way harder and less greasy than fats

waxes

9

the glycerol unit that forms the backbone of neutral lipids has three OH groups at which fatty acids may link, producing a nonpolar compound

triglyceride

10

phosphate containing this are the primary lipids of cell membranes

phospholipid

11

lipids with structures based on a framework of four carbon rings

steroids

12

the most common steroids, have a single polar OH group linked to one end of the ring framework and a complex, nonpolar hydrocarbon chain at the other end

sterols

13

is an important component of animal cell membranes

cholesterol

14

important component of plant cell membranes

phytosterols