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8 Cards in this Set
- Front
- Back
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What % of nitrogen is in air |
78% |
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What % of oxygen is in the air |
21% |
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What % of carbon dioxide is in the air |
0.03% |
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Name 1 indicator to test for co2 |
Lime water |
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Why do we need to respire |
Make new cells, allow muscles to move, keep cells warm |
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What is the definition of respiration |
The chemical reaction which occurs in every living cell to make energy to keep them alive |
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Name 2 'pipe cleaners' |
Mucas and cilia |
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Why is smoking bad |
Hot dust destroys cilia Tar has cancer causing chemicals Carbon monoxide leaves you breathless Nicotine addictive heart rate increase |
