2. Fats and Oils

Question 1

Functions of Lipids (3)

Answer 1

1. Energy storage
2. Structure (cell membranes)
3. Metabolic traffic (hormones, fat-soluble vitamins, and pigment molecules)

Question 2

Lipids include:

Answer 2

1. True fats (esters of fatty acids and gylcerol);
2. lipoids (phospholiipds)
3. sterols (cholesterol)

Question 3

Blood lipid

Answer 3

Triglycerides made from 3 fatty acids attached to a glyercol

Question 4

Mixed micelle

Answer 4

bile salts with emulsified small intestine

Question 5

Fatty Acids

Answer 5

1. Saturated
2. Unsaturated
3. Polyunsaturated

Question 6

Cholesterol serves as precursor for which two important substances in the body?

Answer 6

1. Steroid hormones
2. Bile acids
3. Formation of Vitamin D

Question 7

Name steroid hormones

Answer 7

1. testosterone
2. Estrogen
   3.

Question 8

HDL

Answer 8

HIgh Density Lipoprotein
Brings back cholesterol to the liver
< 40 mg/dL major risk factor for CAD

Question 9

LDL

Answer 9

Low Density Lipoprotein

< 100 mg/dL Optimal

Question 10

VLDL

Answer 10

Very Low Density Lipoprotein

Question 11

chylomicron

Answer 11

transport dietary fat and cholesterol from small intestine to liver and periphery

Question 12

Genetic hyperlipidemias

Answer 12

• Familial hypercholesterolemia
• Polygenic familial hypercholesterolemia
• Familial combined hyperlipidemia
• Familial dysbetalipoproteinemia