| Neighbouring plants can suffer, however, the shade cast by the creeper killing other vegetation by limiting their ability to photosynthesise. |
| Some C4 plants, for example, absorb CO2 and photosynthesise it at either end of special elongated cells, instead of separating the functions out into two different types of cell. |
| Indeed, plankton photosynthesise and even though they only represent less than one percent of the planet's biomass, they absorb almost as much carbon dioxide and produce as much oxygen as all terrestrial vegetation. |
| As CO2 becomes more available, other things being equal, they will photosynthesise more. |
| Some orchids, such as Neottia and Corallorhiza, lack chlorophyll, so are unable to photosynthesise. |
| The minuscule zooplankton feed on ocean algae which, like all plants, use carbon dioxide to photosynthesise. |
