Assertion: photosynthesis | /r/HasProperty | light
Facets:
value: at wavelengths below 680 nm
type: OTHER
value: to keep photosystem ii
type: PURPOSE
Source sentences:
text: hence the name photosynthesis, from the Greek phōs (φῶς), "light", and sunthesis (σύνθεσις), "putting together".
text: Photosynthesis can be broken down into to different phases, the light reaction and the dark reaction.
text: Photosynthesis (photo = light and synthesis = to make) is the process plants use to change carbon dioxide and water into sugar using sunlight.
text: However, photosynthesis can occur with light up to wavelength 720 nm so long as there is also light at wavelengths below 680 nm to keep Photosystem II operating (see Chlorophyll).