Question

Engleman's experiments with green algae
demonstrated that
(a) The full spectrum of sunlight is needed for
photosynthesis
(b) Only red wavelengths is effective in causing
photosynthesis
(c) Only blue wavelength is effective
(d) Both blue and red wavelengths are effective in
causing photosynthesis​

Answer 1

Answer:

D)Action spectrum

by:-T.W Englemann

test org:-cladophora(spirogyra)

placed;-in a suspension of aerobic bacteria

observation:-bacteria accumulated mainly in the region of blue and red light of the spectrum.

Answer 2

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(d) Both blue and red wavelengths are effective in causing photosynthesis.

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hᎾᏢᎬ u ᏞᎥᏦᎬ ᎥᏆ !❤┈━═☆