Fighting disease

• IWhat are defence system of bodies


  -skin -antimicrobial substances

  -hair and mucus in nise trap pathogens

  -Trachea and bronchi mucus

  -trachea and bronchi cilia that waft mucus to the throat to be swallowed
• Anither defence system


  Hcl in stomach
• How do white blood cells protect


  Phagocytosis-engulf

  antibodies that bind to antigen so they can be found and deatroyed

  antibodies rapidly made

  natural immunity
• What do white blood cells make


  Antitoxins that counteract the toxins
• How do vaccines work once injected


  Antibodies made to antigen

  after body produces antibodies
• Pros of vaccine


  -help control lots of disease

  -rid of eg smallpox

  -epidemics prevented due to herd immunity

  -
• Cins of vaccines


  -sometimes dont give immunity

  -bad reaction eg fever or swelling
• What is treatment hiv or aids

  Antiretroviral drugs
• symptom of TMV


  Patches of leaves get discolored in a mosaic pattern effect growth dues to lack of photosyntheis
• Rose black spot


  Purple black spots on leave

  turns yellow and drops early

  water or wind spread

  treat fungicides or removing affected leaves
• How do white blood cells defend against pathogens 


  Phagocytosis

  antibody production

  antitoxin production
• What does foxglove plant make

  Digitalis
• What is aspirin


  Painkiller
• What is penicillin made of

  Penicillium mould
• Result of clinical trials are only published after

  Scrutiny by oeer review