Lipids

Question 1

What are building blocks called?

Answer 1

Glycerol or fatty acids

Question 2

What is each lipid made up of?

Answer 2

1 glycerol and 3 fatty acids

Question 3

Functions of lipids

Answer 3

Store energy 
Provide insulation against cold
Provide waterproof 
Protect organs 
Absorb nutrients 
Provide structure

Question 4

What are the 3 types of lipids

Answer 4

Polyunsaturated
Saturated
Unsaturated

Question 5

Describe the tree types of lipids

Answer 5

Saturated-most common in animals
Solid at room temperature
Called fats
Have lots of hydrogen atoms

Unsaturated-have one hydrogen atom less in each molecule
Common in plants
Liquid at room temperature
Called oils

Polyunsaturated-have several hydrogen atoms less in each molecule
Also called oils

Question 6

What are the health risks of lipids

Answer 6

Saturated fatty acids cause an increase of a fatty substance called cholesterol on blood
Cholesterol is needed in our bodies but excess will cause a layer of fatty material in our arteries
Atherosclerosis-narrowing of the arteries by a fatty material