Fats

Question 1

AMDR for fats

Answer 1

20-35% daily

Question 2

3 major types if dietary fat

Answer 2

1. Triglycerides
2. Cholesterol
3. Phospholipids

Question 3

Triglycerides

Answer 3

3 fatty acids + glycerol

Question 4

Short chain f.a.

Answer 4

6 carbons

Question 5

Medium chain f.a.

Answer 5

6-12 carbons

Question 6

Long chain f.a.

Answer 6

14+ carbons

Question 7

saturated f.a

Answer 7

all carbon bonds are full; solid at room temp (butter)

increased shelf life and appearance, decreased health benefits

Question 8

monosaturated fats

Answer 8

singular double bond b/t carbons (oils/liquids)

Question 9

polyunsaturated fats

Answer 9

2+ double bonds b/t carbons

Omega 3 and Omega 6 f.a.

Question 10

partially hydrogenated fats

Answer 10

H+ added

Question 11

cis f.a.

Answer 11

normal position of H+ on same side

Question 12

trans f.a.

Answer 12

H+ on opposite sides

Question 13

cholesterol

Answer 13

fat like pearly substance (sterol) found only in animal tissues

manufactured in the liver

consume <300 mg daily

Question 14

3 Reasons we need dietary fat

Answer 14

1. Provide energy
2. Provide essential f.a
3. Provide essential fat soluble vitamins (DAKE)

Question 15

Cis Mono saturated fats (Good fats)

Answer 15

20-40% consumed is this

can prevent chronic disease

Question 16

Cis Polyunsaturated fats (Good fats)

Answer 16

can prevent chronic disease

Omega 3 and Omega 6

Question 17

High fat diets are not good for performance b/c….

Answer 17

will displace CHO
increase body wt
cause GI distress

Question 18

Fat Digestion and Absorption (entering the body)

Answer 18

1. Fat enters SI
2. Bile released from GB, lipases from pancreas
3. Dietary lipids converted to FFA, glycerol and chol
4. Absorbed into intestinal cell
5. form chylomicron –> lymphatic syst.
6. Some MCFAs go directly to liver via bloodstream

Question 19

chylomicron

Answer 19

type of lipoprotein (FAT DROPLET) composed of triglycerides, protein, phospholipids, free cholesterol, cholesterol bound to fats

Question 20

Lipid action once IN the body

Answer 20

1. Chylomicron circulates in blood & reacts with muscle/adipose cells
2. PRO increases lipids solubility to enter cell
3. Enzyme relases f.a & glycerol from chylomicron which are absorbed into the cell
4. **Glycerol –> liver & –> glucose via GNG
5. Remains of chylomicron –> liver to be destroyed
6. **f.a. used as E source or combines with glycerol to make triglycerides & store in muscle

Question 21

VLDLs (very LDLs)

Answer 21

mainly TGs, deliver FFA and glycerol to cell

Question 22

LDLs

Answer 22

mainly cholesterol; deliver cholest. to cell

Question 23

HDLs

Answer 23

mainly PRO; delivers cholest. FROM cell to liver

Question 24

Major Fcns of body lipids

Answer 24

1. Structure
2. Metabolic regulation
3. Energy source

Question 25

2 major sources of E (in general)

Answer 25

CHO and long chain f.a

Question 26

2 major sources of E (for fats)

Answer 26

plasma f.f.a & SM trigyceride f.a’s