New Technology

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  • New Technology
    • Using bacteria and yeast
      • fermentation
        • many useful products made from fermentation
          • Antibiotics / Medicines
          • Single cell proteins - meat substitute
          • Enzymes - food processing and laundry detergent.
          • Bio fuels - Ethanol
        • involves growing bacteria and fungi
      • using bacteria
        • reproduce quickly
        • no ethical opposition
        • bio chemistry is simple
        • DNA in form of plasmid
        • Can make complex molecules from simple substrates
    • Genetic Modification
      • genes transferred from one organism to another
      • useful for bio chemistry
      • genes code for a useful protein
      • process:
        • required gene is identified and isolated
          • gene is then replicated to make copies
            • gene is then inverted into the plasmid
              • plasmid is then inserted into the organism (bacterium)
                • modified bacteria are grown in ideal conditions
      • uses
        • making crops resistant to disease
        • manufacturing human protein
        • making bacteria create medicine
    • Nanotechnology
      • manipulating and using particles of materials
      • can be used for food packaging
        • prevent harmful bacteria from growing inside by using silver nano particles as a anti-microbial
    • Stem cell technology
      • stem cells can develop into any cell
      • found in:
        • embryos
        • umbilical chord
        • bone marrow
      • can treat leukaemia (blood cancer)
      • can be cultured outside the body
      • helps repair damage
    • Pace makers and heart valves
      • human heart has its own pacemaker
        • sends impulses to the heart making it contract
      • some peoples natural pacemaker doesn't work properly
        • doctors insert an artificial pacemaker
      • heart valves
        • can become fauly
        • can be replaced
          • 1. Patient is connected to heart-lung machine
            • 2. Heart is stopped and opened
              • 3. valve is replaced
    • Genetic Testing
      • you can find out about genetic disease
      • white blood cells are used
        • easily obtained
      • 1. Isolation of DNA from white blood cells
        • 2. Gene Probe
          • 3. Adding a gene probe to a sample of DNA
            • 4. Using UV light
              • If the gene is present - gel will glow at the point.
            • gene probe will bind to the DNA with the gene for the disease
          • chemical is added to the length of DNA
          • compliment base pairs of the disease genes.

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