BiologyCode 5090
Nutrient cycles
What this topic asks you to be able to do
- Describe how carbon moves through the carbon cycle, limited to: feeding, photosynthesis, respiration, decomposition, combustion and the formation of fossil fuels
- Outline how the nitrogen cycle makes nitrogen available to plants and animals for building protein, limited to: nitrogen fixation by bacteria and by lightning; nitrification; plants absorbing nitrate ions; amino acids and protein being made; feeding and the digestion of proteins; the decomposition of plant and animal protein into ammonium ions; and denitrification
- Outline how fungi and bacteria contribute to decomposition