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Topic 4 (Gas Exchange in Plants (Structure of a leaf (Waxy cuticle…

- - - - Humidity
      - Wind
      - Temperature
      - Light
  - - - Transports water and minerals (one directional). Tubular made up of dead cells, transports water up through the plant
    - - Transports sugars and nutrients around the plant (multi-directional). Sieves allow the movement in different directions and it.s made of columns of living cells, anything non-water based moves through the phloem
  - - - Prevent water getting into the leaf
    - - Let light through to the palisade cells, for protection mainly
    - - Open in the day for gas exchange, close at night to prevent the loss of water and gases
    - - Photosynthesize with chloroplasts filled with chlorophyll
    - - Trap gases in air pockets for gas exchange
    - - Hold the guard cells and stomata
    - - Opens and closes the stoma/stomata for gas exchange
- - - - Vena cava
        
        Pulmonary artery
        
        Lung
        
        Pulmonary vein
        
        Aeorta
        
        To body
  - - - made from respiration
    - - needed for respiration
    - - needed for respiration
- - - - Stomach
        
        Chronic Gastritis
      - Pancreas
        
        Pancreatitis
      - Mouth, trachea and oesophagus
        
        Cancer
      - Blood
        
        Anaemia
      - Brain
        
        Delusions
        
        Impaired memory
        
        Cravings
        
        Impaired development
        
        Vision Changes
        
        Depression
        
        Anxiety
      - Heart
        
        Alcoholic cardiomyopathy
      - Liver
        
        Cirrhosis
        
        Hepatitis
      - Peripheral tissues
        
        Increased risk of Type 2 diabetes