3.5 Lipids 0.0 / 5 ? BiologyBiological moleculesASOCR Created by: ellaj03Created on: 08-05-18 14:38 What is a triglyceride made up of? One glycerol molecule and three fatty acids 1 of 16 What is the fatty acid if the hydrocarbon chain has more than one double bond? Polyunsaturated 2 of 16 What are sterols? A type of lipid known as steroid alchols 3 of 16 What is the test for lipids? Emulsion test 4 of 16 What are the main groups of lipids? Triglycerides (fats+oils; phospholipids & waxes) 5 of 16 What do phospholipids allow membranes to be? Flexible and to transfer substances 6 of 16 Name 4 roles of lipids? Insulation; Protection; Waterproofing; Energy 7 of 16 Are lipids soluble? Insoluble but soluble in organic molecules 8 of 16 Describe the emulsion test Mix sample with ethanol and look for formation of an emulsion 9 of 16 What is cholestrol? A sterol 10 of 16 Where in the body is cholestrol produced? The liver and intestines 11 of 16 If there are no double bonds the lipid is... saturated 12 of 16 What does the presence of double bonds cause in lipids? Causes the molecule to kink or bend 13 of 16 What are phospholipids made up of Carbon, hydrogen, oxygen and phosphorus 14 of 16 The head of a phospholipid is... Hydrophilic 15 of 16 The tail of a phospholipid is... Hydrophobic 16 of 16
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