List 5 factors that might influence the rate of oxygen or carbon dioxide production or consumption in leaves. Explain how each will affect the rate. List five factors that might influence the rate of oxygen (or carbon dioxide) production or consumption in leaves. Explain how you think each will affect the rate.

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There are several factors that effect the rates of photosynthesis:

Light intensity - the more light, the faster the rate (more O2 produced, and CO2 absorbed)

Carbon dioxide concentration - more CO2 the faster the rate

Temperature - the colder it is the slower the rate (if negative, O2 is absorbed, and CO2 released)

Availability of water - the less water available the more likely the plant will wilt loosing some of its ability to absorb sunlight

Availability of nutrients - the amount of chlorophyll, and magnesium for instance or important for the conversion of sunlight, the less of them there are, the slower the rate of photosynthesis.

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