BIOLOGY - Plant Biology - What is photosynthesis

Photosynthesis is crucial for life, providing food and oxygen. It involves green plants and algae using sunlight to convert carbon dioxide and water into glucose and oxygen. Chlorophyll in chloroplasts captures light energy, driving this endothermic reaction. Water is absorbed through roots, and carbon dioxide enters through leaf stomata. Oxygen, a byproduct, is vital for life. Plants, as autotrophs, form the base of the food chain, supporting all animal life.

How do plants obtain carbon dioxide and water for photosynthesis?

Discuss the importance of photosynthetic organisms in the food chain.