Photosynthesis Photosynthesis is a biological process by which plants and certain other organisms convert light energy into chemical energy in the form of s...
Photosynthesis
Photosynthesis is a biological process by which plants and certain other organisms convert light energy into chemical energy in the form of sugar molecules (glucose). During photosynthesis, plants use carbon dioxide from the atmosphere and water from the soil to produce oxygen and glucose. The overall chemical equation for photosynthesis is:
6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂
The glucose produced by photosynthesis is used by plants as a source of energy. It is also used by other organisms, including animals, as a source of energy.
Respiration
Respiration is a metabolic process by which organisms break down organic molecules, such as glucose, into simpler molecules, such as water and carbon dioxide. During respiration, organisms use oxygen to break down glucose into carbon dioxide and water. The overall chemical equation for respiration is:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy
The energy released by respiration is used to power the cells of the organism. It is also used to generate ATP, a molecule that stores energy for the cells.
Key Differences
The main difference between photosynthesis and respiration is that photosynthesis is a process that requires light energy, while respiration is a process that does not require light energy. Photosynthesis also takes place in living organisms, while respiration takes place in living and non-living organisms