AQA A Level Biology复习笔记5.3.9 Percentage Yield
Maths Skill: Calculating Percentage Yield Farmers use various strategies to increase the yield of their crops or livestock. These strategies include: Reducing energy losses from crops to oth...
AQA A Level Biology复习笔记5.3.8 Calculating Productivity & Efficiency
Maths Skills: Calculating Productivity and Efficiency within Ecosystems Given the appropriate data, it is possible to calculate the net productivity of producers or consumers and the efficie...
AQA A Level Biology复习笔记5.3.7 Secondary Productivity
Primary & Secondary Productivity During photosynthesis, primary producers (such as plants and algae) convert light energy into chemical energy in biological molecules The storing of this...
AQA A Level Biology复习笔记5.3.6 Trophic Levels
Trophic Levels Net primary production (NPP) is the chemical energy that is stored in the plant’s biomass (after respiratory losses have been taken into account) This means NPP is the energy ...
AQA A Level Biology复习笔记5.3.5 Net Primary Production
Net Primary Production During photosynthesis, primary producers (such as plants and algae) convert light energy into chemical energy in biological molecules Gross primary production (GPP) ca...
AQA A Level Biology复习笔记5.3.4 Gross Primary Production
Gross Primary Production During photosynthesis, primary producers (such as plants and algae) convert light energy to chemical energy stored within biological molecules Gross primary producti...
AQA A Level Biology复习笔记5.3.3 Biomass
Biomass The biomass of an organism (or of a sample of tissue from an organism) is: The mass of living material of the organism or tissue The chemical energy that is stored within the organis...
AQA A Level Biology复习笔记5.3.2 Photosynthetic Products
Photosynthetic Products The process of photosynthesis transfers light energy to chemical energy in biological molecules In ecosystems where sunlight and water is available, the process of ph...
AQA A Level Biology复习笔记5.2.9 Investigating the Rate of Respiration
Required Practical: Investigating the Effect on the Rate of Respiration A redox indicator is a substance that changes colour when it is reduced or oxidised DCPIP and methylene blue are redox...
