then back to carbon dioxide (respiration) — is part of what is commonly called the global carbon cycle. Indeed, the fossil fuels we use to power our world today are the ancient remains of once ...

It needs to be able to reach all cells in the plant so that the sucrose can be converted back into glucose for respiration. Xylem Transpiration Moves water and minerals from roots to leaves ...

Water does all this without leaving Earth. Its quantity is virtually constant. The main processes involved in this cycle are evaporation, plant transpiration, condensation, precipitation (rain and ...