Biology WBI14/01 June 2021 | Edexcel International A Level Past Papers With Mark Scheme
Edexcel
International AS/A Level
Biology (WBI)
Jun
2021
2. chloroplast vs mitochondrion structure—internal membranes, double membrane envelope, presence of DNA and ribosomes
3. light reactions of photosynthesis—cyclic and non-cyclic photophosphorylation, ATP/NADPH production, photolysis function
4. trophic energy transfer—lion-giraffe-acacia pyramid, habitat, population, niche, community, energy transfer efficiency calculation
5. forensic entomology—larval growth rate, graph-based postmortem interval estimation, temperature-based accuracy limitations, body temperature as death-time estimator
6. carbon cycle—photosynthesis and respiration in carbon transfer, anthropogenic climate change, atmospheric carbon increase, carbon exchange quantification
7. ecological succession in sand dunes—species diversity, organic matter accumulation, pH shift, soil depth increase, NPP variation with dune fixation stages
معلم موافق رایگان بودن است.
1. moss genome size analysis between two classes—frequency distribution, modal value interpretation, paired chromosome implication from mean ratio comparison2. chloroplast vs mitochondrion structure—internal membranes, double membrane envelope, presence of DNA and ribosomes
3. light reactions of photosynthesis—cyclic and non-cyclic photophosphorylation, ATP/NADPH production, photolysis function
4. trophic energy transfer—lion-giraffe-acacia pyramid, habitat, population, niche, community, energy transfer efficiency calculation
5. forensic entomology—larval growth rate, graph-based postmortem interval estimation, temperature-based accuracy limitations, body temperature as death-time estimator
6. carbon cycle—photosynthesis and respiration in carbon transfer, anthropogenic climate change, atmospheric carbon increase, carbon exchange quantification
7. ecological succession in sand dunes—species diversity, organic matter accumulation, pH shift, soil depth increase, NPP variation with dune fixation stages
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