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Biological Molecules - Biology > Lipids > Flashcards

Lipids Flashcards

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1
Q

What are the 2 types of lipids

A

Triglycerides and phospholipids

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2
Q

How do you form triglycerides

A

A condensation reaction happens between one molecule of glycerol and three molecules of fatty acids

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3
Q

What bond is formed between two triglycerides

A

Ester bond

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4
Q

What is the standard formula for fatty acids

A

RCOOH

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5
Q

What can the variable group on fatty acids be

A

Saturated or unsaturated fats

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6
Q

What do carbons have in saturated fats

A

All carbons have single bonds

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7
Q

What do carbons have in unsaturated fats

A

Some carbons may form a double C=C bond

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8
Q

What is the structure of a triglyceride

A

Has 3 fatty acids
Has a glycerol group
Does not have a phosphate group

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9
Q

What is the structure of a phospholipid

A

Has 2 fatty acids
Has a glycerol group
Has a phosphate group

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10
Q

Where are phospholipids found

A

In the cell membrane

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11
Q

What are phospholipids made of

A

Hydrophilic heads
Hydrophobic tails

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12
Q

Why can the hydrophilic heads form bonds with water

A

They are polar. This means that it has a charged end. The negative end of the phosphate group attaches with the positive end of the water

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13
Q

What are hydrophobic tails

A

Non polar

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14
Q

Do triglycerides or phospholipids have ester bonds

A

Both

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15
Q

Do triglycerides or phospholipids have a glycerol group

A

Both

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16
Q

Do triglycerides or phospholipids have saturated and unsaturated fats

A

Both

17
Q

Are triglycerides or phospholipids insoluble? Why

A

Both, because they both have hydrophobic tails

18
Q

Do triglycerides or phospholipids contain carbon, hydrogen and oxygen

A

Both

19
Q

Do triglycerides or phospholipids contain phosphorus

A

Phospholipids

20
Q

Do triglycerides or phospholipids have three fatty acids

A

Triglycerides

21
Q

Do triglycerides or phospholipids have 2 fatty acids and a phosphate group

A

Phospholipids

22
Q

Are triglycerides or phospholipids hydrophobic only

A

Triglycerides

23
Q

Are triglycerides or phospholipids hydrophobic AND hydrophilic

A

Phopholipids

24
Q

Do triglycerides or phospholipids form a bilayer in water

A

Phospholipids

Biological Molecules - Biology (11 decks)

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