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Biology Investigation: The Rate of Bubbling of Elodea Prediction I predict that as the temperature is increased the rate of bubbling of elodea will accelerate then drop off after a certain temperature until it stops bubbling. I predict this because as the temperature rises the elodea will gain more energy and will be able to photosynthesise quicker, causing more bubbles. This will occur because chlorophyll is an enzyme and thus requires energy to work but also has an optimum range for temperature. Chlorophyll works rather like a lock and key. It is important that it are a very specific shape for their purpose (in this case chlorophyll joins carbon dioxide and water together to form glucose). If a key is heated too much, it melts and becomes denatured. It will no longer fit the lock it was designed for. This is why enzymes start to work less well at high temperatures. I think...

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