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8 Cards in this Set
- Front
- Back
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What is Photorespiration?
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a respiratory process in many higher plants by which they take up oxygen in the light and give out some carbon dioxide, contrary to the general pattern of photosynthesis.
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Where is Photorespiration common?
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Hot and Dry environments
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What is the chemical equation for photorespiration?
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Enzyme Rubisco functions as a carboxylase.
RuBP + CO2 –––> 2 3PG (3_carbon molecules) |
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What is weird about Photorespiration?
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It uses O2 and liberates CO2. This is wasteful and reverses the effects of Photosynthesis.
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Photorespiration. In weird environments Rubisco can be what?
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an Oxygenase.
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Photorespiration. what are the conditions for Rubisco acting as an Oxygenase?
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O2 levels are high and CO2 levels are low.
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What happens in Mesophyll cells?
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CO2 enters via stomata and a 4 carbon compound is formed. Goes to the bundle–sheath cells
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What happens in theBundle–sheath Cells?
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The 4 carbon made from the mesophyllc ells are transferred and release CO2
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