Lipids

Question 1

Functions

Answer 1

• great insulators
• function as hormones
• are used for long-term energy storage
• are stored in adipose tissue
• buoyancy to help float
• absorb shock

Question 2

Lipids = 3 fatty acids + 1 glycerol

Answer 2

Triglyceride: glycerol, fatty acid chains
Eicosanoids: steroids & phospholipids
-fats are liquid at body temperature at 37 degrees C and solid at room temperature at 20 degrees C
-oils are liquid in both

Question 3

Trans fatty acid

Answer 3

is linear and hydrogenated

-double bond

Question 4

Unsaturated fatty acid

Answer 4

is kinked and cis

-double bond

Question 5

Saturated fat

Answer 5

….

Question 6

Polyunsaturated fat

Answer 6

2 double bonds

Question 7

Liquids vs. Carbohydrates

Answer 7

• lipids used for long term storage
• carbohydrates are soluble in water because it is polar due to its hydroxyl group
• carbohydrates are easier to transport around the body
• carbohydrates digest rapidly
• lipids contain more energy so are lighter stores

Question 8

BMI

Answer 8

-body mass index is a measure of body fat based on height and weight that applies to adult men and women

BMI= mass in kilograms/ height in meters^2