PHOTOSYNTHESIS 5.0 / 5 based on 1 rating ? BiologyPhotosynthesisA2/A-levelWJEC Created by: Ejgill123Created on: 23-03-18 17:13 Name the 6 structure of chloroplasts thylakoids, stoma, inner membrane, outter membrane, granum and lumen 1 of 22 What is the role of chloroplasts? An energy transducer 2 of 22 Name the two stages of photosynthesis Light dependant (cyclic and no cyclic) and light independant (the Calvin cycle) 3 of 22 What are the reactants and products of photosynthesis? Carbon dioxide + water = oxygen + glucose 4 of 22 What is a energy transducer? The transfer of energy from one form to another form 5 of 22 What are the names of the photosynthetic pigments? chlorophyll a, chlorophyll b, B carotene and xanthophylls 6 of 22 Define the absorption spectrum How much light is absorbed (not the wave length) 7 of 22 Define action spectrum The rate of photosynthesis 8 of 22 Describe the structure of the antenna complex They are grouped in several clusters of several hundred molecules. Known as antennae complexes 9 of 22 What is the differences between non-cylic and cyclic photophosphorylation Cyclic photophosphorylation is the repeates cycle of photosynthesis and non-cyclic is a linear movement and moves to NADPH 10 of 22 What is the role of photolysis in the light-independant stage? Hydrolysis but using light to stablise photosystem 2 using electrons 11 of 22 How is ATP synthesised in the light- dependant reaction? Proton pump in the cell membrane with ATP synthetase attached to the end. Electron passes through and ADP is phosphorylysed creating ATP. ADP +P = ATP 12 of 22 How is Carbon dioxide incorporated into organic molecules? By hexose (sugar) C6H12O6 13 of 22 What is the role of ATP in the light-independant stage? ATP is used to reduce NADP 14 of 22 What is the role of NADP in the light-indpendant stage? Reduced NADP is used for making glycerate-3-phosphate to triose phosphate 15 of 22 What are the byproducts of the Calvin cycle? Carbohydrates, fats and protein 16 of 22 How are the previous byproducts formed? They are byproducts of hexose/ lots of hexose sugars combine together in diferent ways 17 of 22 Define limiting factor. A factor that limits the rate of physical process by being in short supply. An increase in a limiting factor increases the rate of the process. 18 of 22 Name 3 limiting factors in photosynthesis. Carbon dioxide concentration, light intensity and water availability 19 of 22 What is the role of Nitrogen in plant metabolism? Protein, chlorophyll and nucleic acid synthesis 20 of 22 What is the role of magnesium in plant metabolism? The formation of chlorophyll 21 of 22 Why does the Carbon dioxide acceptor need to be regenrated? So Ribulose Biophosphate can be fixed by Carbond dioxide. 22 of 22
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