Carbon dioxide is the gas used in photosynthesis.
Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose (sugar). This process is essential for life on Earth, as it produces the oxygen we breathe and forms the base of most food chains.
Here's a breakdown of the key components involved in photosynthesis:
- Carbon Dioxide (CO2): Plants absorb carbon dioxide from the atmosphere through tiny pores called stomata, primarily located on their leaves. This is the source of carbon used to create glucose.
- Water (H2O): Water is absorbed from the soil through the roots and transported to the leaves. Water provides electrons needed in the process.
- Sunlight: Light energy is captured by chlorophyll, a green pigment found in chloroplasts within plant cells.
- Chlorophyll: This pigment facilitates the conversion of light energy into chemical energy.
The overall chemical equation for photosynthesis is:
6CO2 + 6H2O + Light Energy → C6H12O6 + 6O2
In essence, plants use carbon dioxide and water, with the aid of sunlight, to produce glucose (sugar) and oxygen. The oxygen is released back into the atmosphere as a byproduct. Therefore, carbon dioxide is crucial for photosynthesis.