Ch. 5 Flashcards Preview

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Flashcards in Ch. 5 Deck (44):
1

what are lipids

organic nutrients that are insoluble in water

2

what is not a major class of lipids

glycogens

3

what is the primary form of fat in the diet

triglycerides

4

a triglyceride is comprised of ___

3 fatty acids and 1 glycerol

5

medium chain fatty acids are ___ carbon atoms in length

6-12

6

a fatty acid that contains a chain of ten carbons and one double bond is termed a fatty acid

monounsaturated, medium chain

7

what fatty acid is generally solid at room temperature

saturated

8

what food is rich in monounsaturated fatty acids

olive oil and cashew nuts

9

food that contains a large quantity of saturated fatty aids

palm kernel and coconut oils

10

what is a rich source of polyunsaturated fatty acids

corn oil

11

saturated fats are ___

found in whole milk and beef

12

the process of adding hydrogen to an unsaturated fatty acid and creating a more solid fat is called

hydrogenation

13

trans fatty acids do what

they are created during the hydrogenation process

14

what ingredient would alert you to the likely presence of trans fatty acids in a product

partially hydrogenated vegetable oil

15

what is a rich source of omega-6 fatty acids

margarine made from corn or safflower oil

16

what is not true about essential fatty acids

they are found in meat and dairy products

17

why are phospholipids not an essential nutrient

our bodies manufacture phospholipids

18

what is not true about sterols

sterols contain a glycerol backbone and one fatty acid

19

the key structural componet of a cell's membrane are ___

phospholipids

20

what food item would contain the highest amount of saturated fat

butter

21

sex hormones and adrenal hormones are substances derived from what class of lipids

sterols

22

which of the following is not a function of fat in the human body

fat makes us feel hungry

23

what organ does not aid in the digestion of lipids

large intestine

24

the vast majority of fat digestion and absorption occurs in the

small intestin

25

to facilitate the digestion of dietary fats, the gallbladder stores and realeases a substance know as

bile

26

where in the body are the majority of triglycerides sored for future energy needs

adipose tissue

27

which lipoprtein transports dietary fat out of the small intestine

chylomicron

28

fat leaves the chylomicron and oves into adipose cells when ___ comes in contact with it, which causes the triglyceride to break up and be taken into the adipose cell

lipoprotein lipase

29

how many calories are potentially provided by 25 grams of fat

225 kilocalories

30

during exercise, which of the following triggers the breakdown of stored fat

adrenaline

31

the two essential fatty acids are ___ and alpha-lnolenic acids

linoleic

32

eicosapentaenoic acid EPA and docosahexaenoic acid DHA are metabolic derivatives of ___

alpha-linolenic acid

33

the acceptable macronutrient distribution range for fat is ___ of total energy intake

20-35%

34

which of the following foods contain invisible fats

chocolate cake

35

which of the following species of fish would likely contain the highest levels of cantaminants

swordfish

36

which of the following health problems has been associated with high intakes of fat replacers

gastrointestinal distress

37

what is false regarding the process of hydrogenation

hydrogenation creates a heart healthy product

38

what is a fat replacer

olestra

39

reasearch has found the strongest association between dietary fat intake and what type of cancer

prostate

40

the major form of fat in both food and the body is

triglycerides

41

what type of fat is required to be listed on the nutiriton facts panel by the fda

trans fatty acids

42

what is a excelent source of unsaturated fat

nuts and nut butters

43

how much trans fat is recommended in the diet

as little as possible

44

the label low-fat means each serving must contain

3 grams or less of fat