B1

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  • Created by: Muneeta
  • Created on: 15-06-15 16:36
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  • B1
    • Plant Hormones
      • Can be use for either
        • Agriculture (growing crops in fields)
        • Horriculture (growing flowers, fruits and vegetables)
      • Weedkillers
        • Selective weedkillers kill broad-leaved weeds in grass and crops that have narrow leaves eg wheat.
      • Rooting Hormones
        • Plant hormones used in rooting powder as it helps plant cuttings develope roots faster
    • Plant and Animal Adaptations
      • Animals in the Artic
        • Smaller ears (reduced surface area therefore reduced heat loss)
        • Lighter colours (for camoflage in snow)
        • More fat below skin (for insulation)
        • Larger feet (for better grip on slippery surfaces)
      • Animals in Dry a Environment
        • drink latrge quantities of water - go longer without drinking but still stay hydrated
        • Fat stored for food and water
        • Thick coat on top of body to insulate against heat
        • Large ears transfer body heat to air quicker
      • Extremophiles
        • Organisms that have adaptations so they can tolerate very extreme environments many extremophiles are microrganisms
    • Nervous System
      • Receptors
        • Stimulus (change in surroundings)
          • Nervous System (detects stimuli and coordinates response)
            • Response (change organisms behaviour as a result of the stimulus
        • Receptor organs include;eyes,ears, nose, tongue and skin
      • Responses
        • Reflex
          • Electrical IMPULSE passes from receptor across SENSORY NEURONE to a RELAY NEURONE in the centeral nervous system impulse then passes to a MOTOR NEURONE and then to the EFFECTOR
    • Asexual Reproduction
      • Asexual reproduction involves only one parent. So there is no genetic variety. However this works really well if you need to grow or repair your cells
    • Healthy Living
      • Diet
        • Body needs nutrients to stay healthy
          • if you do not get these nutrients you will become malnourished
      • Metabolic Rate = The speed  at which chemical reactions occur in your cells
      • Eating too much fat can lead to high cholesterol which can lead to heart disease
    • Drugs Trail
      • Before new drugs are introduced you first test them in lab on cultures of cells, cultures of tissues and animals. you then get a healthy volunteer and give them a small dose of the drug to check that the drug is not harmful, then you test the EFFICANCY (if it works) to find the best dose to give.

Comments

ZaraAli

Thanks for the mindmap very useful

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