Lipids Flashcards

1
Q

Triglyceride

A

three fatty acids and a glycerol

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2
Q

Function of fats in foods

A

Nutrient: essential fatty acids
Energy: concentrated energy source
Transport: carry fat-soluble vitamins A, D, E, K to assist in their absorption
Sensory Appeal, appetite
Satiety: feeling full

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3
Q

Function of fats in body

A

Energy stores
Muscle fuel
Padding
Insulation
Cell membranes
Raw materials: fats are converted to other compounds such as hormones, bile and vit D

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4
Q

Lipids

A

Organic compound (C)
Triglycerides (3 fatty acids, 1 glyceride)

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5
Q

Fatty Acids

A

Features: chain length and saturation (# of C and H)

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6
Q

Fatty Acid hydrogenation

A

adding H atoms to unsaturated fats

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7
Q

Types of Fatty acids

A

Saturated (beef, butter, bacon, dairy)
Monounsaturated (olive oil, avocados)
Polyunsaturated (fish, walnuts)

Most foods have more than one kind of fat

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8
Q

Types of fat

A

Hydrogenation

Transfat (margarine)

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9
Q

Essential fatty acids

A

Omega 6 fatty acids (linoleic acid)
Omega 3 fatty acids ([alpha linolenic acid - needs to be converted to EPA], EPA, DPA)

Most people have too much 6 and too little 3.

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10
Q

Phospholipids

A

Phosphorus atom
Component of lipoproteins (emulsifiers, cell membrane structure)

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11
Q

What are chylomicrons?

A

triglycerides
cholesterol
phospholipid
fat-soluble vitamins

Enter the lymph system and then blood stream and then the liver

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12
Q

HDL

A

Want high amount
carries cholesterol from cells to liver

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