Unit 8.1 Digestion (Lipids) Flashcards

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1
Q

What are two characteristics of lipids?

A

store 2x the amount of energy than carbs

non-polar (insoluble in water)

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2
Q

What are lipids made of?

A

glycerol

3 fatty acids

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3
Q

What vitamins do lipids carry?

A

A, D, E, K

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4
Q

What are two functions of lipids?

A

Cushioning organs

Making hormones

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5
Q

What do lipids do in the cell membrane?

A

act as a phospholipid bilayer (provides structure)

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6
Q

What are the four types of lipids?

A

Triglycerides (fat)
Waxes
Phospholipids
Steriods

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7
Q

What are triglycerides and what are the two types?

A

triglycerides are fat (lipid)

there’s unsaturated and saturated

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8
Q

What is the difference between saturated and UNsaturated?

A
saturated = solid @ room temp (animal fats, unhealthy for heart)
unsaturated = liquid @ room temp  (plant oils)
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9
Q

Waxes act as a…

A

waterproof coating (for plant leaves, bird feathers, etc)

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10
Q

What are steroids made of and what are the two types?

A

made of cholesterol
HDL
LDL

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11
Q

What is the difference between HDL & LDL?

A
HDL = removes bad cholesterol, protects against heart attack/stroke
LDL = blocks arteries, can cause heart attack/stroke
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12
Q

What are liposomes and why are they used?

A

Synthetic membranes used to safely deliver drugs, they are used because they reduce unwanted side effects

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