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Gap Filling Quiz

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Respiration is the release of from food. In respiration, is needed to release energy from food.
Respiration takes place in every living . Here the oxygen combines with food to give carbon , water and energy.
A person can show that carbon dioxide is produced in respiration by out through a limewater solution. The colour of the changes from colourless to .
There is more carbon dioxide in air than in air.
To test for in exhaled air, one breaths out onto dry cobalt paper. The paper changes colour from blue to .
respiration occurs when oxygen is not used to release energy from food.