Which gas is essential for photosynthesis?

The gas that is essential for photosynthesis is carbon dioxide. During photosynthesis, plants take in carbon dioxide from the atmosphere through small openings in their leaves called stomata. This gas then combines with water absorbed by the roots to produce glucose and oxygen, facilitated by sunlight energy. The process occurs mainly in the chloroplasts of plant cells, where chlorophyll captures light energy, driving the chemical reactions that transform carbon dioxide and water into sugars and oxygen. Therefore, carbon dioxide is a critical component in the overall biochemical equation for photosynthesis, making it indispensable for plant growth and energy production.