Ch. 5 Flashcards

(44 cards)

1
Q

what are lipids

A

organic nutrients that are insoluble in water

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2
Q

what is not a major class of lipids

A

glycogens

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3
Q

what is the primary form of fat in the diet

A

triglycerides

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4
Q

a triglyceride is comprised of ___

A

3 fatty acids and 1 glycerol

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5
Q

medium chain fatty acids are ___ carbon atoms in length

A

6-12

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6
Q

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

A

monounsaturated, medium chain

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7
Q

what fatty acid is generally solid at room temperature

A

saturated

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8
Q

what food is rich in monounsaturated fatty acids

A

olive oil and cashew nuts

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9
Q

food that contains a large quantity of saturated fatty aids

A

palm kernel and coconut oils

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10
Q

what is a rich source of polyunsaturated fatty acids

A

corn oil

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11
Q

saturated fats are ___

A

found in whole milk and beef

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12
Q

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

A

hydrogenation

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13
Q

trans fatty acids do what

A

they are created during the hydrogenation process

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14
Q

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

A

partially hydrogenated vegetable oil

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15
Q

what is a rich source of omega-6 fatty acids

A

margarine made from corn or safflower oil

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16
Q

what is not true about essential fatty acids

A

they are found in meat and dairy products

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17
Q

why are phospholipids not an essential nutrient

A

our bodies manufacture phospholipids

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18
Q

what is not true about sterols

A

sterols contain a glycerol backbone and one fatty acid

19
Q

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

A

phospholipids

20
Q

what food item would contain the highest amount of saturated fat

21
Q

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

22
Q

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

A

fat makes us feel hungry

23
Q

what organ does not aid in the digestion of lipids

A

large intestine

24
Q

the vast majority of fat digestion and absorption occurs in the

A

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