Light-independent reaction 3.5 / 5 based on 3 ratings ? BiologyPhotosynthesisA2/A-levelAQA Created by: charrington1Created on: 04-03-17 16:51 What is the name of the enzyme that catalyses the reaction between CO2 and RUBP? Rubisco 1 of 21 What two compound products are required to reduce G-3-P to TP? Reduced NADP and ATP 2 of 21 How many Carbons does each GP molecule have? 3 3 of 21 How many GP molecules are formed when you go round the cycle ONCE? 2 4 of 21 How many carbons does TP have? 3 5 of 21 How many ATP and reduced NADH are needed to convert GP to TP? 2 of each 6 of 21 What happens to one of the carbons in the TP molecule per cycle? It is used to form glucose 7 of 21 How many times does the cycle have to go round to produce glucose? 6 8 of 21 How many carbons does RUP have? 5 9 of 21 How is RUP then converted to RUBP? With the use of one ATP molecule 10 of 21 What is this cycle called and who discovered it? The Calvin's cycle, by Melvin Calvin 11 of 21 Where does the light-independent reaction take place? In the stroma 12 of 21 What can be used to measure photosynthesis? Photosynthometer 13 of 21 What does a photosynthometer measure? The amount of oxygen produced in a set time-frame 14 of 21 Why is the test tube in the photosynthometer kept in a water bath? To keep the temperature constant 15 of 21 Why is the lamp left on for 30 minutes? To allow the air spaces to fill up 16 of 21 How is the oxygen pulled up to be measured? Withdraw syringe until oxygen is next to scale 17 of 21 Why might this not show an accurate rate of photosynthesis? Some of the oxygen could have been dissolved by the water or used for cellular respiration 18 of 21 What is one other main precaution that should be made when using a photosynthometer? Make sure that it is air tight so that the oxygen bubble isn't added to or decreased 19 of 21 What is the term used for the apparatus that helped Calvin to find out about the light-independent reaction? Lollipop- it looked like a lollipop 20 of 21 What did he inject into the sample? Radioactive C14 in the form of hydrogen-carbonate 21 of 21
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