Microbes and disease True or false? Statements T or F 1.Bacteria, viruses and some fungi are micro-organisms. 2.Yeast is a type of fungus. 3.Bacteria are smaller than viruses. 4.There are bacteria in yoghurt. 5.Fungi never cause disease. 6.AIDS is a disease caused by a virus. 7.Viruses need other living cells to reproduce. 8.Ringworm is a disease caused by a worm. 9.Antibiotics such as penicillin are made by viruses. 10.When microbes respire they produce oxygen gas.

Microbes What are they? What are the main types? Can they be useful? Can they cause problems? Where do they get their energy?

509m x300450m tall Taipei 101 Taiwan

X km tall X km tall X km tall

0.1mm Yeast cells Our scale 10.0m

Bacteria 0.001mm Our scale 10.0cm

A virus mm Our scale 10.0mm

Aerobic respiration food (glucose) oxygen carbon dioxide water energy + + +

Dough = flour + water + yeast + sugar + salt Questions for your group 1.What is the gas which makes the dough rise? 2.What process produces this gas? 3.Why is the dough kept somewhere warm to rise? 4.How might the amount of sugar affect how high the dough rises? 5.Yeast is alive. What happens to it when the bread is baked at 200 o C? Making Bread baking proving dough kept in warm place at 200 o C

True or false? Statements 1.Bacteria, viruses and some fungi are micro-organisms. 2.Yeast is a type of fungus. 3.Bacteria are smaller than viruses. 4.There are bacteria in yoghurt. 5.Fungi never cause disease. 6.AIDS is a disease caused by a virus. 7.Viruses need other living cells to reproduce. 8.Ringworm is a disease caused by a worm. 9.Antibiotics such as penicillin are made by viruses. 10.When microbes respire they produce oxygen gas. T or F TRUE FALSE TRUE FALSE TRUE FALSE

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