they produce more energyy
Catalysts doesn't affect the energy of reactions
by lowering the activation energy.
Enzymes lower the activation energy required for reactions to occur
they lower the activation energy.
activation energy of the reaction.
Catalysts speed up reactions by reducing the activation energy.
The light reactions provide energy carriers for the dark reactions.
Endothermic reactions require energy while exothermic reactions release energy.
Reactions that absorb energy from the environment are referred as endothermic reactions.
Exothermic reactions release energy.
endothermic reactions require energy
If by energy you mean heat energy exothermic reactions.