How does light frequency affect the rate of photosynthesis?

Answer 1

Any frequency outside of the range required by chlorophyll for energy conversion will result in a loss of photosynthesis activity.

Chlorophyll (actually the pigments of related cyanobacteria and chloroplasts) can only use certain frequencies of light to provide the energy needed for photosynthesis. Thus, any frequencies outside of a relatively narrow band will not be used for photosynthesis, thus reducing the rate of photosynthesis if the required frequencies are not available.

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Answer 2

Elias Aboujaoude

Since higher light frequencies, like blue and red light, match the peak absorption spectra of chlorophyll, they are better at accelerating photosynthesis.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.