AS Biology 2.1.2 Biological Molecules 4.0 / 5 based on 2 ratings ? BiologyBiological moleculesBiological molecules, organic chemistry and biochemistryASOCR Created by: BethanyMCreated on: 04-10-15 15:49 What is a carbohydrate? A group of molecules containing carbon, hydrogen and oxygen 1 of 15 What is the main function of monosaccharides? To provide energy (i.e. glucose) 2 of 15 Hexose, pentose and triose sugars are normally in what form? Ring/cyclic 3 of 15 In solution, hexose, pentose and triose sugars exist in what form? Straight chains 4 of 15 Isomers are …? Molecules with the same formula, but whose atoms are arranged differently in space 5 of 15 Give two properties of a disaccharide sweet, soluble 6 of 15 What is the product of alpha glucose + alpha glucose? Maltose 7 of 15 What is the product of alpha glucose + fructose? Sucrose 8 of 15 What is the product of beta galactose + alpha glucose? Lactose 9 of 15 What is the product of beta glucose + beta glucose? Cellobiose 10 of 15 Which reaction occurs when a disaccharide is broken into two monosaccharides? A hydrolysis reaction 11 of 15 In alpha glucose, the hydroxyl group (OH) is _____ the plane of the molecule Below 12 of 15 In beta glucose, the hydroxyl group (OH) is ______ the plane of the molecule Above 13 of 15 How does the structure of starch (spiral, compact) aid its function? It is insoluble, has no osmotic effect and you can store more of it 14 of 15 How does the structure of cellulose (in straight chains) aid its function? Many polymers in a chain held by hydrogen bonds adds a lot of strength to cell walls supporting turgid cells 15 of 15
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