The following statement is true for the absorption spectra of photosynthesis:

Correct answer: B. Chlorophyll a and b have different absorption spectra.

  • A. Chlorophyll a and b have the same absorption spectra.
  • B. Chlorophyll a and b have different absorption spectra.
  • C. Chlorophyll a and carotenoids have the same absorption spectra.
  • D. Carotenoids and chlorophyll b have the same absorption spectra.

Explanation

Yes, chlorophyll-a and chlorophyll-b, the two main types of chlorophyll found in photosynthetic organisms, have slightly different absorption spectra. Chlorophyll-a and chlorophyll-b absorb light most efficiently in the blue and red regions of the electromagnetic spectrum, but they have different absorption peaks. While chlorophyll-a is directly involved in the conversion of light energy to chemical energy in the photosystems, chlorophyll-b expands the range of light that can be captured and utilized for photosynthesis.

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