Why do we need to know about photosynthesis?

Photosynthesis provides us with most of the oxygen we need in order to breathe. We, in turn, exhale the carbon dioxide needed by plants. Plants are also crucial to human life because we rely on them as a source of food for ourselves and for the animals that we eat. read more

First of all, without plants the entire food chain—or more accurately the food web—would lose its foundation. All animals (including us humans) ultimately depend on plant material either directly, or indirectly through their herbivore prey. read more

Photosynthesis is necessary because it forms the basis of the food chain. Photosynthesis, which occurs in green plants and algae, is the process by which sunlight combines with carbon dioxide, water and a chemical called chlorophyll to produce simple sugars. read more