Exam 2 chap 5 Flashcards Preview

2017 Health and nutrition > Exam 2 chap 5 > Flashcards

Flashcards in Exam 2 chap 5 Deck (32)
Loading flashcards...
1

Lipids provide and store energy, cushion vital organs, insulate against temperature extremes, form cell membranes, transport fat-soluble substances, and serve as raw materials.

ye

2

Lipids provide abundant food energy in a small package, enhance aromas and flavors of foods, and contribute to satiety.

ye

3

The body combines _____ fatty acids with one _____ to make a triglyceride, its storage form of fat.

three
glycerol

4

Fatty acids in food influence the _____ of fats in the body.

composition

5

____ ____ are energy-rich carbon chains that can be saturated (filled with hydrogens) or monounsaturated (with one point of unsaturation) or polyunsaturated (with more than one point of unsaturation).

Fatty acids

6

The degree of _______ of the fatty acids in a fat determines the fat's softness or hardness.

saturation

7

Phospholipids play key roles in cell membranes.how?

they have selective permeability

8

_____ play roles as part of bile, vitamin D, the sex hormones, and other important compounds.

Sterols

9

Plant sterols in foods inhibit _______ absorption.

cholesterol

10

In the _____, fats separate from other food components.

stomach

11

In the ____ ______, bile emulsifies the fats, enzymes digest them, and the intestinal cells absorb them.

small intestine

12

______ and short-chain fatty acids travel in the bloodstream unassisted.

Glycerol

13

Other lipids need special transport vehicles—the ________—to carry them in watery body fluids.

lipoproteins

14

____ fats act like saturated fats in the body.

Trans

15

Meats account for a large proportion of the hidden solid fat in many people's diets.

ye

16

satureated/unsat fat is solid

sat

17

The chief lipoproteins are chylomicrons, VLDL, LDL, and HDL.

ye

18

High blood LDL/HDL and low blood LDL/HDL are major heart disease risk factors.

LDL
HDL

19

______ fat and trans fat intakes raise blood cholesterol.

Saturated

20

Dietary_______ seems to have little effect on blood cholesterol in most people.

cholesterol

21

_____ of the essential fatty acids are virtually unknown in the United States and Canada.

Deficiencies

22

The essential fatty acids fall into two chemical families: omega-_ or omega-_ fatty acids.

6
3

23

The omega-6 family of polyunsaturated fatty acids includes _____acid and ______ acid.

linoleic
arachidonic

24

The omega-3 family includes ______ acid, ____, and ____

linolenic acid, EPA, and DHA

25

___ and ____ may play roles in disease prevention, brain communication, and human development.

EPA
DHA

26

Many people should/should not increase their seafood consumption.

should

27

Supplements of omega-3 fatty acids are/are not recommended.

are not

28

______ oils become more saturated when they are hydrogenated

Vegetable

29

_______ vegetable oils are useful, but they lose the health benefits of unsaturated oils

hydrogenated

30

The process of hydrogenation creates ____-fatty acids.

trans