nutri feb21 Flashcards

1
Q

functions of fats

A
  1. source of energy
  2. component of body cells
  3. insulation and padding
  4. provide satiety value
  5. contribute to palatability of food
  6. protein sparer
  7. carrier of fat-soluble vitamins
  8. source of essential fatty acid
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2
Q

1g fats = kcal?

A

1g fat = 9kcal

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3
Q

what component of the body increases with age

A

body fat

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4
Q

body fat is inversely proportional to?

A

body water

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5
Q

what maintains body temperature and serve as shock absorbers

A

adipose tissue

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6
Q

sources of fats

A

visible fats
invisible fats
unsaturated fats
saturated fats

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7
Q

visible fats

A

cooking oil
salad dressing
butter
lard
margarine
animal fats

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8
Q

invisible fats

A

egg yolk
milk
avocado
well-marbled meat

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9
Q

unsaturated fats

A

safflower
corn
cottonseed
sesame
sunflower oil
soybean oil

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10
Q

saturated fats

A

butterfat
whole milk
ice cream
egg yolk
bacon
tallow
suet
lard
fatty meats
chocolates
pastry
pudding

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11
Q

how many percent of total energy do fats provide

A

20-30%

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12
Q

supplier of epa

A

linolenic
linoleic
arachidonic

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13
Q

fat paddings

A

organ/bones
shock/pain

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14
Q

aesthetic functions of fats

A

satiety
flavor and palatability
moistness in food products

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15
Q

causes of obesity

A

mindless eating
lack of exercise
empty plate

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16
Q

health issues associated with fat intake

A
  1. L-carnitine burns fats
  2. use of fat replacers / slimming pills / slimming tea
17
Q

effects of slimming pills/tea

A
  1. fecal urgency
  2. gastric discomfort
  3. fat malabsorption
18
Q

diet high in saturated fats =

A

hypercholesterolemia

19
Q

lipids does not cause cancer

A

true

20
Q

dietary fats promote cancer once it has arisen

A

true

21
Q

What is the impact when the consumption of fats is deficient

A

weight loss (less than 30 grams)

22
Q

visual problems

A

low fat = vitamin a will not be absorbed by the body

23
Q

growth retardation

A

low fat = chon excessive use

24
Q

dietary fats may help prevent what in humans

A

caries

25
Q

kcal as fat = little decay

A

70%-80%

26
Q

decay starts to appear

A

when fat is reduced to 25%

27
Q

how does fat act to reduce dental caries on tooth surface

A

coats tooth surface with oily substance

28
Q

what would a fatty protective layer over plaque prevent

A

fermentable sugar substrate from being reduced to acids

29
Q

high concentrations of fatty acids may interfere with the growth of what

A

cariogenic bacteria

30
Q

cariogenic bacteria

A

streptococcus mutant

31
Q

what decreases the amount of dietary fermentable carbohydrate necessary for organic acid formation

A

increased dietary fat