The wavelength of light most absorbed during photosynthesis is
A. 700 nm
B. 660 nm
C. 550 nm
D. 440 nm
Answer: Option B
Solution(By Examveda Team)
The wavelength of light most absorbed during photosynthesis is 660 nm.Not all wavelengths of light can support photosynthesis. The photosynthetic action spectrum depends on the type of accessory pigments present. For example, in green plants, the action spectrum resembles the absorption spectrum for chlorophylls and carotenoids with absorption peaks in violet-blue and red light.
The non-absorbed part of the light spectrum is what gives photosynthetic organisms their colour and is the least effective for photosynthesis in the respective organisms.
Related Questions on Plant Pathology
Which photosynthetic bacteria possess both PS I and PS II?
A. Purple sulphur bacteria
B. Cyanobacteria
C. Purple nonsulphur bacteria
D. Green sulphur bacteria
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