Lipids Flashcards

(66 cards)

1
Q

In which form are most dietary lipids found?

A

Triglycerides

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2
Q

What is a good plant source of omega-3 lipids?​

A

Flax Seed

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3
Q

Lipids Although eating fish supports heart health and fish provides many vitamins and minerals, it is notably poor in ____.​

A

iron

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4
Q

What fatty acid is used by the body to synthesize arachidonic acid?​

A

linoleic

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5
Q

What is a negative consequence of hydrogenation?​

A

addition of trans double bonds in fatty acids

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6
Q

What is a feature of phospholipids?

A

Soluble in both water and fat

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7
Q

Which of the following is a feature of choline?

A

It is a part of lecithin

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8
Q

Bob has just come back from the doctor, where he was subjected to a blood lipid profile analysis. The doctor recommended he make dietary changes because his blood cholesterol levels put him at increased risk for cardiovascular disease. Bob most likely has ____.

A

Low HDL and high LDL

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9
Q

Your Aunt Gladys has a family history of heart disease. She decides to begin eating a bowl of oatmeal every morning to help lower her blood cholesterol. After about a month of following this routine, her cholesterol declined about five points. What is the most likely explanation for this effect?​

A

Oatmeal is high in soluble fibers that trap bile, causing the body to use more cholesterol for bile replacement.

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10
Q

Which of the following is characteristic of the lipase enzymes?

A

Salivary gland lipase (lingual lipase) plays an active role in fat digestion in infants

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11
Q

Bile is known to assist in the absorption of

A

Fat Only

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12
Q

A high risk of heart attack correlates with high blood levels of

A

low-density lipoproteins.

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13
Q

What is the function of lipoprotein lipase?​

A

to hydrolyze blood triglycerides for uptake into cells

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14
Q

What is the percent of kcalories from fat for a cookie that contains 10 grams of fat and 150 kcalories?​

A

60 percent

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15
Q

Which of the following is a feature of fat intake and health?

A

Intake of saturated fat raises blood cholesterol more than intake of cholesterol

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16
Q

Which structural feature of fatty acids determines their susceptibility to spoilage by oxygen?

A

Number of double bonds

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17
Q

Jenny is trying to lose weight by decreasing the fat in her diet. At the grocery store she is overwhelmed by all the claims on the food product labels, and finally chooses an expensive fat-free frozen dessert. Which of the following would be an appropriate analysis of Jenny’s decision?

A

Fat-free products typically have so much added sugar that the kcalorie count can be as high as in the regular-fat product

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18
Q

Which of the following is a feature of fat in the diet of athletes?

A

A minimum of 20% fat energy in the diet is needed

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19
Q

Which type of fish has the highest amount of omega-3 fatty acids per serving?

A

Sardines

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20
Q

A major feature of the Mediterranean diet is liberal intake of

A

olive oil.

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21
Q

In the digestion of fats, emulsifiers function as ____.

A

detergents

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22
Q

Studies show that a 1 percent increase in dietary saturated fatty acids will raise the risk of heart disease by what percentage?

A

2

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23
Q

What is the simplest 18-carbon fatty acid?

A

stearic acid

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24
Q

What lipoprotein is responsible for transporting cholesterol back to the liver from the periphery?

A

high-density lipoprotein

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25
Which compound is a sterol?
Vit D
26
Which of the following fish has the highest protein content?
Sardines
27
Which of the following fish is very low in mercury content?
Cod
28
Due to its high mercury content, which of the following fish should women who are pregnant avoid?
Swordfish
29
What fish offers the most concentrated source of vitamin B12?
Sardines
30
What is the healthiest choice for canned tuna?
Packed in water or broth
31
What type of tuna is typically used to make sushi?
Big eye
32
Salmon is an excellent source of what nutrient?
Vit D
33
In studies, what amount of Salmon (servings per week) has been shown to reduce the risk for cardiovascular disease?
2-3
34
Cod is an excellent source of this nutrient.
Protein
35
Potential health-promoting benefits of cod include
Blood Sugar Regulation
36
How many calories are in 4 oz. of cod?
96
37
Sardines are an excellent source of what nutrient?
B12
38
Peak season for sardines is during what months?
Summer
39
How much of one's daily calories should come from fat?
20-35
40
What is the best way to store nuts and seeds?
In an airtight container in the refrigerator or freezer
41
Sunflower seeds are an excellent source of what nutrient?
Vit E
42
Flaxseeds are the most concentrated plant source of
Omega 3
43
Sesame Seeds are a good source of this nutrient, which is important in a number of anti-inflammatory and antioxidant enzyme systems.
Copper
44
Pumpkin Seeds are a good source of this mineral, a hard-to-find mineral important for a healthy immune system
Zinc
45
This type of walnut is the most popular in United States.
English
46
This nut is soaked to make a great alternative to cow's milk, which is very popular in the United States.
Almond
47
Technically, this is not a nut but a legume.
Peanut
48
Due to their high content of oleic acid, the oils in this nut are more stable than those in most other nuts.
Cashews
49
Which nut is a good source of magnesium, which helps to give bone its physical structure? It is a part of the crystal lattice that serves as "scaffolding” that supports the integrity of bone.
Cashews
50
This nut is a very good source of vitamin E.
Almonds
51
lipids are composed of
carbon, hydrogen, oxygen
52
triglycerides contain
1 molecule of glycerol and 3 fatty acids
53
fatty acid chain lengths
4-24
54
lacks 4 or more hydrogen. | omega 3 and 6, 18 chain, body can't make they are essential
polyunsaturated fats
55
fatty acid that lacks 2 hydrogen atoms and has one double bond between
monounsaturated fat
56
fatty acid carrying the maximum possible number of hydrogen atoms
saturated fat
57
fatty acid that lacks hydrogen atoms and has at least one double bond (mono and poly)
unsaturated fat
58
18 carbons, 2 double bonds
linoleic acid
59
18 carbons, 3 double bonds
linolenic acid
60
chief form of fat in the diet and major storage form of fat
triglycerides
61
backbone of triglycerides, composed of 3 carbon chains
glycerol
62
compound similar to triglycerides but having a phosphate and choline in place of one fatty acid
phospholipids
63
nitrogen containing compound found in foods and made in the body from methionine (part of phospholipid lecithin and neurotransmitter acetylcholine)
choline
64
compounds containing 4 ring carbon structure with side chain attached (most important ones - hormones, vit D, cholesterol, bile acids)
sterols
65
HDL
transports cholesterol back to the liver from the cells
66
LDL
primarily cholesterol