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Bio: 3.1 Biological Molecules > Lipids > Flashcards

Lipids Flashcards

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1
Q

The Two Types of Lipid

A

Triglyceride
Phospholipid

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2
Q

Triglyceride

A

1x Glycerol
3x Fatty Acid Tails
Energy Store - Lots of bonds in Fatty Acids
Insulation - Thermal and Mechanical
Fatty Acid tails are Hydrocarbons

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3
Q

Ester Bonds

A

Condensation reaction
Between Glycerol and a Fatty Acid

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4
Q

Phospholid

A

1x Glycerol
2x Fatty Acid Tails - Hydrophobic
1x Phosphate containing group - Hydrophillic

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5
Q

Emulsion Test

A
  1. Add Ethanol to sample
  2. Shake/mix vigorously
  3. Add Water
  4. Positive = Milky white Emulsion formed
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6
Q

Properties of Triglycerides

A

Energy Storage Molecule
- Long Hydrocarbon tails contain lots of chemical energy
- Also insoluble

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7
Q

Properties of Phospholipids

A

Bilayer of cell membranes
- As Phosphate group is Hydrophilic
- And Fatty Acid is Hydrophobic

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Bio: 3.1 Biological Molecules (9 decks)

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