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Photosynthesis - Coggle Diagram

- - - - r^bl: boundary layer resistance
      - r^st: stomatal resistance
      - r^ias:
      - r^chl: chloroplast resistance
- - - - In C3, oxygen is sometimes fixed instead of carbon, often due to hot, dry conditions. Stomata close, and photorespiration occurs instead of the Calvin cycle.
      - This causes the plant to lose energy and carbon!
  - - - Initial CO2 fixation occurs in the mesophyll cells. Here, PEP carboxylase initially fixes CO2, rather than RUBISCO.
      - The Calvin Cycle occurs in the bundle sheath cell.
  - - - At night, the stomata are opened to take in CO2 and fix it using PEP Carboxylase. It is stored in a vacuole overnight within the same cell.
      - During the day, the stomata close to prevent the loss of H2O, and malic acid diffuses to bring fixed CO2 to Calvin Cycle.