Lipids

?
What are the two types of lipids?
Triglycerides and phospholipids
1 of 9
What is formed by the condensation of one molecule of glycerol and three molecules of fatty acid?
A tryglyceride
2 of 9
What forms an ester bond?
A condensation reaction between glycerol and a fatty acid.
3 of 9
In phospholipids, what is one of the fatty acids in the triglyceride substituted for?
A phosphate group.
4 of 9
What are the properties of triglycerides?
They are insoluble in water and are used for insulation and protection in fatty tissue. They yield more energy per unit mass than other compounds so are good for energy storage.
5 of 9
What are the properties of phospholipids?
They make up the cell membrane and when mixed with water, phospholipids form droplet spheres with the hydrophillic heads facing the water and the hydrophobic tails facing each other. This is called a micelle.
6 of 9
What is the emulsion test for lipids?
You shake the test substance with ethanol for about a minute and then pour the solution into water. Any lipid will show up as a milky emulsion.
7 of 9
What can the R group(hydrocarbon tail) in a fatty acid be?
It can be saturated or unsaturated.
8 of 9
What is the difference between a saturated fatty acid and an unsaturated fatty acid?
Saturated fatty acids don't have any double bonds between their carbon atoms, where as unsaturated fatty acids do have double bonds between their carbon atoms, which causes the chain to kink.
9 of 9

Other cards in this set

Card 2

Front

What is formed by the condensation of one molecule of glycerol and three molecules of fatty acid?

Back

A tryglyceride

Card 3

Front

What forms an ester bond?

Back

Preview of the front of card 3

Card 4

Front

In phospholipids, what is one of the fatty acids in the triglyceride substituted for?

Back

Preview of the front of card 4

Card 5

Front

What are the properties of triglycerides?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

Lipids
See all Biology resources »See all Biological molecules resources »