Botany - Photosynthesis in Higher Plants Question with Solution | TestHub
Which of the following statements is/are incorrect?
(i) Green light falling in the range of wavelength 500 - 580 nm is least effective for photosynthesis.
(ii) In non-cyclic photophosphorylation, the electron expelled from the reaction center is not cycled back, though its loss is compensated by electrons from the photolysis of water.
(iii) Chl a, Chl b, carotenoids, and xanthophylls are insoluble in organic solvents.
(iv) 400 - 700 nm light is used in photosynthesis also known as PAR.
(v) Red light is the most effective for photosynthesis.
Options:
Answer:
Solution:
Green light is not absorbed and is reflected back hence it is least effective for photosynthesis. In non-cyclic photophosphorylation, the electron lost from reaction center of PSI is replenished from PSII while the electron lost from PSII is replenished by electrons from water produced during photolysis. Chlorophyll and carotenoids are insoluble in water but soluble in organic solvents. Red light is the most effective for photosynthesis. 400 - 700 nm light is used in photosynthesis also known as Photosynthetically Active Radiation.
