Biological Molecules (Lipids) 0.0 / 5 ? BiologyBiological molecules, organic chemistry and biochemistryA2/A-levelOCR Created by: Jasmine FinchCreated on: 25-11-17 18:26 What are lipids made from? Carbon, Oxygen and Hydrogen 1 of 12 Insoluble/soluble? Insoluble 2 of 12 What are lipids made from? Glycerol and Fatty Acids 3 of 12 What is a glycerol molecule composed of? Three carbon atoms with hydroxl groups attached 4 of 12 Are fatty acids saturated or unsaturated? They can be both! 5 of 12 What does the letter 'R' stand for? The variable group depending on how many hydrocarbons there are 6 of 12 What happens is the fatty acid is unsaturated? Molecules are pushed apart making them more fluid like and oily 7 of 12 What are Triglycerides made from? One glycerol molecule with three fatty acids 8 of 12 What bonds are formed in Triglycerides? Ester bonds that are covalent 9 of 12 Are Triglycerides hydrophobic? Yes they are insoluble in water 10 of 12 What difference does a Phospholipid have to a Triglyceride? The third fatty acid is replaced with a phosphate group (head) 11 of 12 Is the 'head' hydrophilic or hydrophobic? Hydrophilic 12 of 12
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