Why is photosynthesis an endothermic reaction?

The heat content (q) of the reaction is negative.
A large amount of energy is released into the surroundings.
A large amount of energy is required to activate the reaction.
The temperature of the surroundings increases.
There is no exchange of energy between the system and the surroundings.

Question

Why is photosynthesis an endothermic reaction?

The heat content (q) of the reaction is negative.
A large amount of energy is released into the surroundings.
A large amount of energy is required to activate the reaction.
The temperature of the surroundings increases.
There is no exchange of energy between the system and the surroundings.

SkyVoltage43 · Answer

@psirockin2

psirockin2 · Answer

A large amount of energy is required to activate the reaction.