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9 Cards in this Set
- Front
- Back
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Name 2 health & safety precautions for this experiment (rate of respiation) |
Wash hands thoroughly Minimise harm to living organisms used in the experiment |
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Name one factor that affects the rste of respiration |
Respiration is effected by temperature |
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How can temperature be prevented from affecting the rate of respiration |
Keeping respirometers in a water bath during an experiments |
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What is the functions of soda lime in respirometer |
Absorbs carbon dioxide produced by the seeds during respiration
Prevents Co2 from affecting the movement of the liquid bob |
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What us the functions of the water bath |
Maintins the constant temperature which changes the rate of respiration |
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What us the functions of the potassium hydroxide |
Absorbs Co2 produced by germinating seeds
Prevents Co2 from interfering with the movement of blob in water |
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What us the functions of the tap & syringe containing air |
Allows the pressure to be released between experinents
Allows the blobs of water to push back to start position |
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State 2 ways you can measure the rate of respiration of seeds |
Rate calculated by dividing distance by time
The distance that liquid blob moved over a particular time |
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Explain why the liquid blob moves during the experiment |
Oxygen is absorbed from the surrounding air by the germinating seeds This reduces the volume of air in the container and moves the blob |
