Is Photosynthesis Endergonic or Exergonic?


Quick Answer

Photosynthesis is an endergonic reaction. An endergonic reaction requires or absorbs energy from its surroundings, while an exergonic reaction releases energy. Most reactions that create or synthesize compounds are endergonic.

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Full Answer

Photosynthesis is a process in which plants form carbohydrates from water, minerals and carbon dioxide found in the air or bicarbonate from water. As a result of this process, it releases oxygen. The energy required for photosynthesis comes from light, which produces adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate-oxidase (NADPH). Both of these compounds fuel work at the cellular level.

According to scientists at the Climate Change Guide, global increases in temperatures are affecting photosynthesis. Higher temperatures force plant pores to shrink, reducing water absorption and rate of photosynthesis.

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