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NEET Biology Photosynthesis in Higher Plants Question Bank History of Photosynthesis

  • question_answer
    Two pigment system theory of photosynthesis was proposed by or Concept of evidence for existence of two photosystems in photosynthesis was given by [DPMT 1986; MP PMT 1989; CBSE PMT 1994]

    A) Hill

    B) Blackman

    C) Emerson

    D) Arnon

    Correct Answer: C

    Solution :

    The discovery of Emerson effect. One group of pigments absorbs light of both shorter and longer wavelengths (more than 680nm) and another group of pigment absorbs light of only shorter wavelengths (less than 680nm). These two groups of pigments are known as pigment systems or photosystems.


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