Multiple choice

Which of the following photosynthesis is present in bacteria?

  1. PS I

  2. PS II

  3. Both PS I and PS II

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cyanobacteria (blue-green algae) possess both Photosystem I and Photosystem II, similar to plants. Other photosynthetic bacteria like purple sulfur bacteria have only reaction center complexes similar to PS I. The question refers to cyanobacteria, which have the complete oxygenic photosynthetic apparatus with both photosystems.

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