Photosynthesis

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Photosynthesis

• IBDP Biology HL/Option C

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Complete Action vs. Absorption Spectra (-
xanthophylls)
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Image source unknown. Question from the IBO.
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e-
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Useful light dependent reaction animations
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plateau
CO2 is a substrate in an enyme-catalysed
light-dependent reaction.
At low CO2 concentration, rate is positively
correlated with concentration
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plateau
At low light intensity, rate of photosynthesis is
proportional to light intensity.
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Optimum temperature
Above the optimum temp., enzymes are denatured
and rate drops steeply.
Increased temp. gives increased energy and
increased rate of photosynthesis
Which enzymes are used in respiration?
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What are the conditions of each of these trials?
Rate of photosynthesis
Light intensity
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Alternative Mechanisms to FIX carbon
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C4 vs. CAM
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