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Biology · PYQ NEET UG 2026

हिन्दी

Which pigment has absorption peak at 700 nm in the photosynthetic reaction centre PS I (P700) ?

  1. Chlorophyll b
  2. Chlorophyll a
  3. Xanthophylls
  4. Carotenoids

Correct answer · Option 2

Chlorophyll a

Explanation

In Photosystem I (PS I), the reaction centre chlorophyll a has an absorption peak at 700 nm, hence designated as P700.

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