Why does the rate of photosynthesis increase with increasing light intensity?

Answer 1

It increases when temperatures rise and in the winter when it gets cold it decreases and that is to protect the tree or plant. When the day is starting, it increses then peaks in the middle of the day, and then decreases at the end. Temperature determines how much light is givin to the plant.

Answer 2

Photosynthesis is light dependent. At low light intensities, this may become the limiting factor - one reason why plants grow better outdoors, rather than in the house, and one reason why we recommend the use of light banks if you are trying to grow plants in schools. There is also a level above which photosynthesis cannot take place any faster as other factors become limiting - CO2 level or temperature for instance.

Answer 3

As the rate of photosynthesis increases and it reaches a plateau, the lights intensity or CO2 concentration increases. When it comes below a certain temperature, the rate of photosynthesis increases as temperature increases. Above the temperature the rate of photosynthesis decreases as temperature increases.

In other words the rate of photosynthesis goes up until no more as the light brightens or CO2 concentration goes up. When the temperature falls below the line, the rate of photosynthesis goes up as the temp goes up. When the temp goes up the rate of photosynthesis falls as the temp goes up. This is a roller coaster ride.

Answer 4

Well, if this is true, it is Chemically certain that this is not what is expected.

When a chemical and or a [photosynthetic] biochemical System is at Equilibrium, all of the concentrations of both the reactants and the products are 'settled down' and constant.

Changing the concentration of any of these will affect the concentrations of all the other components - ergo an increase in the concentration of Atmospheric CO2 should be accompanied by an corresponding increase in the Rate of Photosynthesis - due to the System's efforts to re-establish Equilibrium.

Answer 5

The rate decreases because Chloroplasts use Carbon-dioxide, so it slows down to conserve it.