Lipids

What elements make up Lipids?

Lipids have a characteristic that means they wont effect water potential, what is this characteristic?

Lipids are soluble in two substances though! Name them.

Lipids are a useful source of energy, why?

Lipids make a good waxy cuticle on plants and insects, why?

Why are lipids good insulators?

Lipids can be found around vital organs, why?

Name two types of lipid

What does it mean if a fatty acid is:
1) Monounsaturated?
2) Polyunsaturated?
3) Saturated?

What makes triglycerides an excellent source of energy?

What feature of triglycerides makes a good storage molecule?

Are triglycerides polar or non-polar?

When oxidised, what do triglycerides release?

Are phospholipids polar or non-polar?

What feature of a cell do phospholipids make up? How come they are suited to this feature?

Name two differences between the structure of a triglyceride and a phospholipid?

Describe the steps in the test for a lipid.

If there is a lipid present, what will happen to the solution in the test?