A-Level Biology

Limiting Factors in Photosynthesis

In this video, we look at limiting factors in photosynthesis. First we explore how we can identify what factor is acting as the limiting factor. We then see how light, carbon dioxide concentration and temperature can act as limiting factors but why water is not considered to be a limiting factor. Finally, we explore the effect of low light intensity and low carbon dioxide concentration on the levels of key molecules in the Calvin cycle.