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Factors affecting photosynthesis

Asked by Butterflywing | Jun 10, 2007 | GCSE Level > Biology > Revision
Butterflywing asks:

Explain why the rate of photosynthesis does not continue to increase as light intensity continues to increase.

etutor answers:
You reach a point where light is no longer the limiting factor (e.g. there may not be enough carbon dioxide to allow a higher rate, no matter how much you increase the light). In fact, in normal daylight, carbon dioxide usually IS the limiting factor, and the rate of photosynthesis on a really sunny day is often no greater than on a day that is just 'bright'.

1 student responses


I would like to know, if youy are an A level student and what school that is??

responded Jun 16, 2007 3:28:51 PM BST
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Yo Yo
Yo Yo
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