Biological Molecules (Carbohydrates) 0.0 / 5 ? BiologyBiological molecules, organic chemistry and biochemistryA2/A-levelOCR Created by: Jasmine FinchCreated on: 25-11-17 17:39 When glucose bonds break down to release energy, what do they create? ATP 1 of 16 In plants and animals, only which glucose can be used? a glucose 2 of 16 What molecules are a glucose made from? Amylose 3 of 16 How do glucose molecules bind together and what bonds do they make? Condensation reactions and (1-4) glycosidic bonds 4 of 16 Are amylose molecules water soluble? No 5 of 16 When iodine become trapped in amylose chains what happens to the colour change in Potassium iodine solution? Yellow-brown to Blue-black 6 of 16 What is the name for the branched carbohydrate chain? Amylopectin 7 of 16 Are Glycogen (1-4) chains shorter or longer than starch and more or less branched? Shorter and much more branched 8 of 16 What does lots of branching mean? Able to be broken down quicker during respiration as more ends to hydrolise from 9 of 16 Two properties of starch and glycogen! 1) insoluble in water- no effect to water potential 2) Store glucose so can be easily broken off and used in respiration 10 of 16 What are cellulose molecules made from? B glucose chains 11 of 16 Is glucose a polysaccharide? Yes 12 of 16 What is the order of the different cellulose fibres? Micro, Macro and cellulose fibres 13 of 16 How do Macrofibrils form? Microfibrils bunch together by hydrogen bonds 14 of 16 Roles of Microfibrils 1) Allow parts of the body to open and close (stoma) 2) Reinforcement 3) Waterproof 15 of 16 Cellulose forms straight or coiled chains? Straight 16 of 16
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