Module 5

Question 1

What does lipids include?

Answer 1

• triglycerides 95% (fats&oils),
• phospholipids (lecithin) , can be used as emulsifiers, helps fat transport
• sterols (cholesterol)

Question 2

Roles of fat in the body?

Answer 2

• Fuel stores
• cushion, climate and cell membranes
• transport and raw material

Question 3

Roles of fat in food?

Answer 3

• energy
• essential fatty acids
• fat soluble nutrients and their absorption
• satiety

Question 4

What are the types of fatty acids?

Answer 4

-Saturated, Monousaturated, Polyunsatured,

Point of unsaturation, missing a carbon

Question 5

What are the roles of essential polyunsaturated fatty acids Omega 3 & 6?

Answer 5

• immune process, cell membranes, hormone compounds, lipids to brain & nerves, skin, eyes.

Question 6

What is hydrogenation?

Answer 6

Hydrogen added to liquid unsaturated fat making them saturated and solid. Converting some into trans fats

Question 7

Where does majority of fat digestion take place?

Answer 7

small intestine.

Question 8

How does digestion occur?

Answer 8

Bowl is made by the liver from the cholesterol and emulsifies fats that it can mix with watery fluids and can be digested.
The gall bladder stores bowl from the liver and squirts it into the small intestine so that fat digesting enzymes can break apart fat to smaller molecules to be absorbed.

Question 9

What are lipoproteins?

Answer 9

Carriers of fat to so that it can be absorbed by the body.

Question 10

What are the major types of lipoproteins?

Answer 10

• Chylomicrons : transport lipids to liver and other tissues
• VLDL: carry triglycerides and other lipids made in liver to body cells
• LDL: Transport cholesterol and lipids to tissues
• HDL: transport cholesterol away from body cells to liver for disposal

Question 11

How does fat produce energy?

Answer 11

Fatt cells broken down and comined with glucose to yield energy.
Carbohydrate help break down fat. Without adequate carbohydrate - incomplete fat breakdown - and key tones are produced.

Question 12

What is recommendation for fat intake?

Answer 12

• WHO 15-35% of total calorie intake.
• Sat fat <-1%, Poly 6-11%
• cholesterol less than 300mg/day

Question 13

What risk does trans fat impose?

Answer 13

Raise ldl and lowers hdl.

-produce inflammation

Question 14

What are benefits of fish oils?

Answer 14

• decrease risk heart disease

- develop brain & vision in infants.

Question 15

What is a mediterranean diet pyramid?

Answer 15

• lower intake red meat, higher nuts and legumes and fish, healthy oils.