Biology 1A (P.2)

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  • Created by: Shine.7
  • Created on: 20-04-14 19:33
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  • Biology 1A (P.2)
    • Plant hormones
      • AUXINS
        • move towards shaded area/where there is no light or stimuli
        • produced to enlarge plants
      • Phototropism/ Geo or Gravitropism/ growth towards moisture
      • Tip can be removed or blocked= no growth
    • Homeostasis
      • ION CONTENT: regulated by kidneys/lost as sweat/urine
        • BODY TEMP:brain-enzymes-best 37/over 40:cells break down
          • WATER LOSS:sweat/breath/urine/faeces:depends on season
            • BLOOD SUGAR:Insulin level right level-constant supply Energy
              • +exercise=lots glucose removed
                • carbohydrates=puts glucose.
    • Testing drugs ( H.A.V)
      • 1)tested on HUMAN CELLS/TISSUES
        • 2)on ANIMALS
          • 3)Human Volunteers in CLINICAL TRIAL
            • Healthy ppl/sufferers/placebo/double-blind
            • check if SAFE+dosage
          • check side-effects+dosage
    • Purposes of drugs and its types
      • Medical
        • Recreational
          • Perfomance-enhancing
            • STEROIDS: boost heart rate+increase stamina
              • ANABOLIC STEROIDS: stimulate muscle growth
                • MALE: enlarge prostate/impotence
          • Illegal (soft+hard{more harmful} drugs)
            • Legal: tabacco+alcohol
              • AL:nervous system changed/ brain/liver damage
                • TAB: cancer/ heart+lung disease
            • heart problems.
      • ADDICTION
      • Thalidomide
        • deformities/no limbs for babies
          • FOR morning sickness
        • Reintroduced to cure LEPROSY
        • pass through placenta+effect feutus
  • WOMAN:menstrual problems/deep voice

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