biology

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  • Created by: 10carterj
  • Created on: 15-06-14 15:50
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  • biology 1B
    • carbon cycle
      • photosynthesis
        • green plants creating energy
          • CO2+H2O
            • =C6H12O6+O2
              • glucose+oxygen
            • carbon dioxide+water
              • glucose+oxygen
          • chloroplasts
      • burning fossil fuels
        • to produce energy
          • unrenewable
    • animals
      • adaptations
        • camel
          • thick layered fur
          • adapted to hot environments
          • fat filled hump
          • spread feet
            • easier to maneuverer on the sand
    • plants
      • photosynthesis
        • green plants creating energy
          • CO2+H2O
            • =C6H12O6+O2
              • carbon dioxide+water
              • chloroplasts
          • adaptations
            • cactus
              • adapted to hot environments
                • no leaves, spines to lower surface area
                • poisonous water in centre, to ward of predators
                • long roots, side ways
        • the nervous system
          • synapses and nerves
            • synapses connect neurones
              • this passes a nerve signal, by chemicals moving across a gap
          • 5 sense organs
            • eyes
              • light receptors
            • ears
              • sound, like vibrations and balance receptors, sensitive to changes in position
            • nose
              • smell receptors, sensitive to chemical stimuli
            • tongue
              • taste recptors, sensitive to chemical stimuli
            • skin
              • touch, temp change, pressure and pain
        • genes, chromosomes and DNA
          • cloning
            • cell division
            • cuttings
              • gardeners can take cuttings from good parent plants, and then plant them to produce genetically identical copies of the parent plant.
                • these plants can be produced quickly and cheaply
            • tissue culture
              • this is where a few plant cells are put in a growth medium with hormones, and they grow into new plants.
                • these plants can be made very quickly, in very little space, and be grown all year.

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