TREE PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Only wavelength that carotenoid cannot absorb
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Chlorophylls absorb light of these wavelengths more then other wavelengths
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Light of these wavelengths have the highest energy in the visible spectrum
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Light of these wavelengths activate ATP synthase enzyme
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Detailed explanation-1: -The blue and red light spectrum is most efficient in photosynthesis because both photosystems (PS I and PS II) absorb light with wavelengths in the red range (680 and 700 nm, respectively). Carotenoids absorb blue light as well, passing the energy on to chlorophyll. Chlorophyll absorbs light in the red region.
Detailed explanation-2: -For example, blue (B) and red (R) light are the most effectively utilized wavelengths during plant photosynthesis because the absorption spectra of the photosynthetic pigments mainly focus on the B (400–500 nm) and R (600–700 nm) light spectra.
Detailed explanation-3: -Chlorophyll a absorbs violet and orange light the most. Chlorophyll b absorbs mostly blue and yellow light. They both also absorb light of other wavelengths with less intensity.
Detailed explanation-4: -Chlorophyll absorbs certain wavelengths of light within the visible light spectrum. As shown in detail in the absorption spectra, chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum.
Detailed explanation-5: -Plant pigment molecules absorb only light in the wavelength range of 700 nm to 400 nm; this range is referred to as photosynthetically-active radiation. Violet and blue have the shortest wavelengths and the most energy, whereas red has the longest wavelengths and carries the least amount of energy.