Fats pg 3/4 Flashcards

1
Q

what are the 3 things fats provide

A

energy
nutrients
insulation

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2
Q

why do our bodies need fats

A

-provide concentrated sources of energy
-source of vitamins A, D, E and K
-keep us warm from a layer of insulating fat and protect our bones and organs
-to make cholesterol

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3
Q

what are fats made up of

A

fatty acids
-glycerol
=in form of triglycerides

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4
Q

fatty acid chains are made up of….

A

carbon and hydrogen
-can be saturated or unsaturated
-difference is how carbon atoms bond with hydrogen atoms

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5
Q

what bond do saturated fatty acids have

A

single C-C bonds

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6
Q

what bond do unsaturated fatty acids have

A

at least one C=C double bond

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7
Q

characteristics of saturated fats

A

-solid at room temperature
-come from animal sources
-high in fat
-too much can increase cholesterol levels in the blood, increasing the risk of CHD

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8
Q

whats the difference between saturated and unsaturated fats

A

saturated are bad for your health and unsaturated are generally healthier

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9
Q

characteristics of unsaturated fats

A

-liquid at room temperature
-come from vegetable sources
-can be monounsaturated and polyunsaturated

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10
Q

what is a monounsaturated fat

A

-contain 1 C=C double bond
-found in olive oil, almonds, peanut butter, avocados

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11
Q

what is a polyunsaturated

A

more than 1 C=C double bond
-found in sesame oil, soybean oil, seeds oily fish

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12
Q

fats shouldn’t make up more than what percent of our daily food energy

A

35%

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13
Q

what is the average amount of fat an adult should consume in a day

A

20g-women
30g-men

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14
Q

Excess fat

A

-lead to weight gain
-obesity
-type 2 diabetes
-increase blood cholesterol levels

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15
Q

Deficiency fat

A

-less fat-soluble vitamins A,D,E and K
-weight loss
-less insulation
-thinner layer of fat under skin

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16
Q

examples of saturated fats

A

beef
lamb
pork

17
Q

examples of unsaturated fats

A

avocados
olives
nuts