Question

1. Why is photosynthesis considered an endothermic
reaction?​

Answer 1

Because heat is absorbed during photosynthesis

it happens with chlorophyll.

Chlorophyll helps to absorb energy from sun to carry various reaction

Answer 2

Photosynthesis is an endothermic reaction because sunlight is being absorbed during the reaction and the definition suggests that in a reaction if heat is being absorbed it is termed as an endothermic reaction.