The action spectrum of the plant shows which wavelengths of light are most effective for photosynthesis.
action spectrum
Frequency:
70
%
Scientists use a spectrophotometer to measure the action spectrum of different compounds.
Idiomatic Expressions for action spectrum
Phrase: beyond the action spectrum
Meaning: refers to wavelengths of light that are not within the range most effective for a particular biological process
Usage: UV light is beyond the action spectrum for most plants, as it can be damaging instead of helpful for photosynthesis.