Topic 4 - Unicellular Organisms

• Scurvy is caused by the lack of vitamin c
• Eye diseases are caused by the lack of vitamin a
• Rickets is caused by the lack of calcium
• Anemia is cause by lack of vitamin a
• Pellagra is caused by lack of vitamin b
• Osteoporosis is caused by the lack of vitamin d
• What are the four main types of microbes?

  Bacteria, viruses, fungi, parasite ( protozoa )
• What is an example of a bacterial disease?


  MRSA or cholera or pneumonia or tetanus
• What is an example of a fungal disease?

  Athletes foot or ringworm
• What is an example of a virus?

  Ebola or influenza or chicken pox
• What is an example of a parasite?

  Malaria
• What are the natural defences your body uses to prevent you getting sick?

  Skin, nose, trachea, stomach
• Phagocytes are attracted to pathogens ( bad ), the phagocyte's membrane surrounds the pathogen and then the phagocyte engulfs the pathogen.
• Lymphocytes produce antibodies if they sense foreign substances in/near the body
• How do you treat a bacterial infection?

  Antibiotics.