B4 0.0 / 5 ? BiologyEcology and Environmental ScienceGCSEOCR Created by: [email protected]Created on: 24-04-16 17:19 What is Lincoln Index? Capture & recapture method to estimate Animal Population 1 of 15 What assumptions must be made using the capture/ recapture method? No death, immegration or emigration & marks given don't affect survival 2 of 15 What is Zonation? Gradual change in species distribution across a habitat 3 of 15 What is an 'abiotic factor' & a 'biotic factor'? Abiotic- physical, Biotic- Not physical 4 of 15 Define 'Population' & 'Community' Population- Number of individuals of a species in a defined area. Community- All populations that live in one habitat 5 of 15 What is an Ecosystem? Physical envrionment with particular set of conditions & organisms in it, which can support itself without any other influence 6 of 15 Why is biodiversity low in an artifical ecosystem? Because they are made for a specific purpose & Farmers don't want competition 7 of 15 What is the word equation for Photosynthesis? carbon Dioxide + Water -> Glucose + Oxygen 8 of 15 What is the symbol eqaution for Photosynthesis? 6CO2 + 6H2O -> C6H12O6 + 6O2 9 of 15 Name the four substances Glucose is converted to in Plants. Starch, Cellulose, Amino Acids & Lipid Structure 10 of 15 Why is Glucose converted into Starch? Strach is an insoluble molecule which can be stored in cells. 11 of 15 Why is Glucose Converted into Cellulose? Cellulose is needed by the Plant for Cell Walls. 12 of 15 Why do Glucose & Nitrates react to form Amino Acids? Amino Acids form Proteins, which is needed for growth & repair & to make Enzymes 13 of 15 Why is Glucose converted to Lipids? Lipids are Fats/ Oils which is stored in seeds 14 of 15 Why is Glucose not stored? If it was, Cells would become very concentrated & water would easily move in, making the cell swell. 15 of 15
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