Okay the primary determining <span> factor would be the concentration.
Well, </span><span>Factors Affecting the Rate of Diffusion Size Small molecules can slip by </span><span><span>the polar heads of the phospholipids and through the membrane to the other side. </span> </span>
Answer:
The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.
Explanation:
To protect them from ultraviolet rays from the sun.
