The step that relates to the energy transformation in photosynthesis is respiration.
What is respiration?
Respiration is the process whereby the chemical energy locked up in carbohydrates is unlocked into another energy form that is usable to living organisms.
In other words, chemical energy in carbohydrates is converted to ATP. This process can take place with (aerobic respiration) or without (anaerobic respiration) oxygen.
Carbohydrates are primarily generated from photosynthesis by green plants.
More on respiration can be found here: https://brainly.com/question/12605249
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