Flashcards
Lipids
Cards in this deck (17)
- 1what are 6 functions of lipids?-protect internal organs
-insulation
-waterproofing
-metabolic water
-stores energy
-buoyancy - 2lipds are non polar so there are what in water?insoluble
- 3what is a triglyeride made up of?one glycerol and 3 fatty acids
- 4what reaction makes a triglyceride?condensation
- 5what bond forms in lipids?ester bond
- 6what is a phospholipid made up of?one glycerol and 2 fatty acids
- 7what are phospholipids used for?important part of cell membrane
- 8what is also present in a phospholipid?phosphate group
- 9what does hydrophobic mean?will repel water
- 10what does hydrophilic mean?is attracted to water
- 11what test is for lipids? (fats)emulsion test
- 12stages of emulsion test...-take sample and add ethanol
-shake
-add water
-positive result = cloudy - 13what is an isomer?compounds with same formula but different structure
- 14what is the difference in molecules between olive oil and animal fat?olive oil molecules are unsaturated (contain some double bonds between carbons) animal fats are saturated (contain single bonds between carbons)
- 15what is another difference bretween fats and oils?fats solid at room temp, oilsa re liquid
- 16what is the feature of the R group in fatty acids?the fatty acid tails id variable on the length of the hydrocarbon chain
- 17why are lipids good for energy storage?release twice as much anergy as carbs
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- Biology Flashcards on Lipids, created by paigexmonks on 18/05/2013.
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- paigexmonks
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