Explain why the following conditions are necessary for photosynthesis

• Light: Used to break down water molecules (photolysis) into hydrogen ions and oxygen molecules. Energy in form of ATP is also formed. The hydrogen ions and energy formed are used in the dark stage.
• Carbon (IV) oxide: Combines with Hydrogen ions in the dark stage to form glucose/amino acids/lipids, a reaction called Carbon (IV) oxide fixation. High CO₂ concentration increases the rate of photosynthesis while low CO₂ concentration decrease the rate of photosynthesis.
• Water: It is split to yield hydrogen ions, oxygen, and energy. Forms a medium for biochemical reactions. Also acts as a solvent.
• Chlorophyll: The green pigment that traps light energy used for photolysis.
• Optimum temperature: Temperature affects the action of enzymes involved in photosynthesis;