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topic 6 - Coggle Diagram

- - - - photosynthesis
    - - CO2 diffuses faster
    - - Stomata
    - - create air spaces that allow gases to diffuse
    - - light
- - - - pump sucrose into /out of the sieve cells. Pumping in increases the pressure and causes the sucrose to flow either up or down to where it is needed.
  - - - everywhere around plant
      - Transports sugars.
    - - Transports water and mineral ions.
      - only up
      - die during their development and their top and bottom cell walls degrade , forming long empty vessels.
      - very rigid because of hard lignin in their thick side walls
        
        high water pressure and support the plant.
- - - - plant growers can use gibberellins to make seeds germinate without this.
    - - Gibberellins can cause some plants to produce fruit without this, giving seedless fruits.
  - - - This will make plant cuttings to
        develop roots quickly.
- - - - minerals and salts
  - - - wilting
- - - - stimulous
        
        water
        
        light
        
        gravity
    - - As auxins move downwards, they move to the shaded parts of the shoot
      - The auxins cause cell elongation
      - Auxins are produced at the very tip of the shoot and move down the shoot
    - - Auxins are also found in root tips
      - they are pulled downwards and inhibit cell elongation.