Lipids

Question 1

3 groups of lipids:

Answer 1

1. Phospholipids
2. Tryglycerides (fat)
3. Sterols

Question 2

Functions of lipids

Answer 2

1. Energy
2. Insulator
3. Protects organs
4. Stores and circulates fat soluble vitamins

Question 3

Glycerol

Answer 3

Backbone of fat molecule

Question 4

Monoglyceride

Answer 4

If only one fatty acid is attached

Question 5

Diglyceride

Answer 5

If two fatty acids are attached

Question 6

Fatty acids

Answer 6

Have even number of carbon in their chain.

16-18 carbon are the most common in food

Question 7

Short chain fatty acid

Answer 7

Soluble in water.

Have distinctive flavors

Question 8

Saturated fatty acid

Answer 8

No more hydrogens can be added

Question 9

Unsaturated fatty acid

Answer 9

Room to add more hydrogen.
When carbon is double bonded.
Monounsaturated/polyunsaturated
Liquid at room temperature

Question 10

Cholesterol

Answer 10

Naturally produced in the body.

Only produced in animal tissue

Question 11

LDL (low density lipoprotein)

Answer 11

Less protein, more lipid.

Carries cholesterol to cells, and can leave cholesterol in the arteries

Question 12

HDL ( high density lipoprotein)

Answer 12

More protein, less lipid.

Roams bloodstream picking up cholesterol, and removes cholesterol from arteries