chapter 3 - fats Flashcards

1
Q

what are the type of fats

A

saturated and unsaturated

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2
Q

describe what is saturated fat

A

do not contain any double bond (single bond)

cannot take in any more hydrogen atoms

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3
Q

what are the two types of unsaturated fats

A

monounsaturated and polyunsaturated

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4
Q

describe what is monounsaturated fats

A

one double bond

can take in 2 hydrogen atoms

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5
Q

describe what is polyunsaturated fats

A

contain 2 or more double bonds

can take in 4 or more hydrogen atoms

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6
Q

identify from saturated and unsaturated fats, which is good and bad fats

A

saturated fats - bad fats

unsaturated fats - good fats

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7
Q

name 3 food source of saturated fats

A
butter
lard 
ghee
bacon 
cheese
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8
Q

name 3 food source of monounsaturated fats

A

olive oil
avocadoes
almond

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9
Q

name 3 food source of polyunsaturated fats

A

walnut
sunflower seeds
salmon

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10
Q

what happens if consume too much fats

A

weight will gain due to the accumulation of body fats

hence increase the risk of cardiovascular disease

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11
Q

what happens if consume too little fat

A

weight loss
hence disruption to our normal body functions as our body temp will not be regulated
thus our liver, brain, heart etc will slow down

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12
Q

how are trans fat produced

A

produced during hydrogenation of vegetable oils

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13
Q

describe the conversion of trans fat

A

liquid oils are converted to solid fats
during this conversion,
unsaturated fatty acids become more saturated and produce trans fatty acids

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14
Q

food source of trans fat

A

processed food such as
chicken nuggets
margarine

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15
Q

trans fat develop what health problems

A

cancer and heart diseases

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16
Q

what are the chemical elements of fats

A

carbon, hydrogen, oxygen

17
Q

name all 4 functions of fats

A

rich source of energy
insulation
storage for fat-soluble vitamins
protection of vital organs

18
Q

explain the function of rich source of energy

A

9kcal of energy

excess energy stored in the form of body fat

19
Q

explain the function of insulation

A

reduce heat loss

insulating the body against the cold

20
Q

explain the function of storage for fat-soluble vitamins

A

dissolve and store vitamins A D E K

thus improve the absorption and the uses of the vitamins

21
Q

explain the function of protection of vital organs

A

cushioning the vital organs against impact and damage blows

22
Q

describe the state of saturated and unsaturated at room temperatures

A

saturated: usually solid at room temp.
monounsaturated: solidify at low temp., change into liquid state at room temp
polyunsaturated: liquid state at room temp