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3.5 Energy transfers in and between organisms
3.5.1 Photosynthesis
What are the raw materials of photosynthesis?
How is the leaf adapted to absorb these materials?
What are the stages of photosynthesis?
Where does the light-dependent reaction take place?
What are the stages of the light-dependent reaction?
What are the stages of the making of ATP?
What is chemiosmotic theory?
What are the stages of chemiosmotic theory?
Diagram of chemiosmotic theory
What are the stages of the photolysis of water?
What are the products of the light-independent reaction?
Diagram of the light-independent reaction
Where does the light-independent reaction take place?
What are the stages of the light-independent reaction?
What are the products of the light-independent reaction?
Diagram of the light-independent reaction
What is the Law of Limiting Factors?
What are the limiting factors for photosynthesis?
What is the Light Compensation Point?
3.5.2 Respiration (A-level only)
What is the desired product of respiration?
What are the stages in aerobic respiration?
Where in the cell does Glycolysis take place?
What are the stages of glycolysis?
Diagram of glycolysis
What are the net products of glycolysis?
What happens in anaerobic respiration following glycolysis?
What is the oxygen debt?
Why is anaerobic respiration inefficient?
What happens in aerobic respiration following glycolysis?
What are the stages of the link reaction?
Diagram of link reaction
What are the stages of the Krebs cycle?
Diagram of the Krebs cycle
What are the stages of the electron transport chain?
Diagram of electron transport chain
What are some alternative respiratory substances?
How is fat broken down for energy?
How is protein broken down for energy
3.5.3 Energy and ecosystems
How do plants synthesise organic compounds?
How are sugars used by plants?
How is biomass measured?
How can chemical energy storage in mass be calculated?
Diagram of a bomb calorimeter
What is Gross Primary Production?
What is Net Primary Production?
What is primary & secondary productivity?
What are some agricultural methods for increasing the efficiency of energy transfer?
3.5.4 Nutrient cycles
What are saprobionts?
What is the nitrogen cycle?
What are the stages of the nitrogen cycle? - fixation by free living bacteria route
What are the stages of the nitrogen cycle? - fixation by mutualistic bacteria route
What is nitrogen fixation?
What is nitrification?
What is denitrification?
What is ammonification?
Diagram of the nitrogen cycle?
What is the phosphorus cycle?
What are the stages of the phosphorus cycle?
Diagram of the phosphorus cycle?
What is the role of mycorrhizae in nutrient cycles?
What are fertilisers?
What are some environmental issues that can arise from the use of fertilisers?
What is leaching?
What is eutrophication?