How can higher sea temperatures affect photosynthesis? What do they prevent from being made?

The chemical reactions that combine carbon dioxide and water to produce glucose are controlled by enzymes . As with any other enzyme-controlled reaction, the rate of photosynthesis is affected by temperature. ... At high temperatures, enzymes are denatured .

Explanation:

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added