Microbes test

Louis Pasteur

Microbes are small organisms that can only be seen with a microscope.

• Fungi
• Bacteria
• Viruses

Either. They are unicellular and multicellular.

• Cell membrane
• nucleus
• cell wall

One. They are unicellular

• Cytoplasm
• Strand of DNA
• cell membrane
• cell wall

Viruses are very simple organisms, even smaller than bacteria. Viruses will only carry disease in your body. When they enter your body they completely take over and kill a cell

• Cover your mouth when you cough
• Use a handkerchief when you have a cold
• Clean cuts and cover them with a plaster
• keep your body clean
• wash hands before eating/preparing food
• Keep food tightly wrapped in the fridge
• Use a condom during sexual intercourse

White blood cells are cells in your blood especially created for engulfing invading pathogens and creating antibodies to help fight off disease.

Phagocytes

Lymphocytes

Vaccinations are where dead or weakened microbes that cause disease are inserted into your blood. This is so your white blood cells can create an antibody which create memory cells, so that if you were to catch the real disease you would be immune because your body knows how to fight it off.

Antibiotics are chemicals produced by fungi that either kill bacteria or stop them growing. Sir Alexander Fleming discovered this.

• Breaking down faeces in sewage works
• Good bacteria is found in the process of making yoghurt

True

• Yeast in beer
• Yeast in bread

• Eyes
• Ears
• Nose
• Mouth
• Skin
• Genitals
• Hands