Microbes

• Microbe Definition


  A microorganism that is only one cell.
• Microbes


  Protozoa, bacteria, viruses, fungi
• Antiseptic Technique - Not contaminating the culture

  1. Hands and desk are washed
  2. Equipment on working area
  3. Label dish with name, date and information
  4. Wire of inoculating is flamed until red-hot
  5. Don't put the inoculating loop or bottle down
  6. The mouth of the culture bottle is passed through the Bunsen flame.
  7. Keep the lid of the petri dish above the dish
  8. Tape the side of the dish
• Antiseptic Technique -Stopping microbes escaping

  1. Mouth of bottle flamed again
  2. Wire of inoculating flamed until red-hot
  3. Tape dish
  4. Work surfaces and hands washed again
• Microbes need to reproduce


  Food and warmth
• Reasons for using antiseptic technique

  To not contaminate the culture
• Lifecycle of a malaria parasite

  1. Female anopheles mosquito feeds on blood
  2. Parasite goes to liver
  3. Uses a Kupfer cell to enter liver cell to multiply and burst
  4. Parasite goes into red blood cells, eat, multiply and explode
  5. New mosquito drinks blood and picks up parasite
• Good microbes


  Fungi, yeast, lactobacili
• Pathogen


  Causes illness
• White blood cells


  Produce antibodies that attach to antigens - with the specific shape
• Memory cells


  Are left behind by the body
• Vaccine


  Has memory cells after a weaker version enters
• malaria effects


  Comes in cycles of temperature, bowel problems, very tired, difficulty breathing
• Microbes under 0 degrees

  Stop growing - like hibernation
• At 63 degrees microbes


  Start to die
• At 100 degrees microbes


  Die
• Preventing malaria


  Anti-malarial drugs, bed nets, vaccine
• Yogurt is made from

  Lacto bacilis
• Bread is made from

  Yeast
• Antigens


  Can only lock onto a particular pathogen
• Making yogurt


  Milk + lacto bacilis
• Penicillin


  Antobiotic