Photosynthesis is an endergonic reaction.
- It is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of organic compounds, mainly glucose, which is used as a source of energy for growth, development, and reproduction.
- This process involves the absorption of light energy by chlorophyll pigments, which is then used to split water molecules into oxygen gas and hydrogen ions. The hydrogen ions are used to reduce carbon dioxide to glucose, which is an energy-rich molecule
- Photosynthesis is endergonic because it requires energy to proceed. Specifically, the conversion of carbon dioxide and water into glucose and oxygen requires energy in the form of light. This energy is absorbed by chlorophyll pigments in the plant's chloroplasts and is used to power the chemical reactions of photosynthesis.
- The energy absorbed during photosynthesis is stored in the chemical bonds of glucose, which can be broken down later to release energy in a process known as cellular respiration.