Respuesta :
photosynthesis is how plants make energy! They get the sun energy and absorbed by the plant. The plant then uses it to make food for the plant. Oxygen is also produced by the plant in this cycle, which is then let off into the air! Have you noticed how clean and pure the air feels when there are plants around? They are filling the air with oxygen!
Photosynthesis is the process through which green plants and other specific living organisms utilize light energy to convert water and carbon dioxide in to simple sugars. Through photosynthesis, green plants are able to manufacture their own food which is essential for their growth.
Photosynthesis involves two significant stages. The initial stage reactions are highly dependent on light energy and thus referred to as light stage. In light stage, light energy splits water molecules into oxygen and hydrogen ions. Oxygen gas is released to the air as a by-product. The hydrogen ions are moved to the next stage of photosynthesis.
The second stage light independent reaction and thus referred to as dark stage. In dark stage, carbon dioxide is transformed into simple sugars referred to as Adenosine Tri-Phosphate (ATP) in the presence of hydrogen ions through a process known as carbon fixation. Carbon fixation involves an endothermic chemical reaction and thus photosynthesis requires supply of energy to drive the process.