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Photosynthesis in green algae and in photosynthetic bacteria is, respectively,

  • (a) oxygenic and anoxygenic Correct
  • (b) oxygenic in both Your answer
  • (c) anoxygenic in both Your answer
  • (d) anoxygenic and oxygenic Your answer
Your answer: Correct answer: (a)
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Explanation

Why (a) is correct

Green algae have chlorophyll a and both photosystems; they split water and release O2 (oxygenic). Photosynthetic bacteria such as purple and green bacteria do not split water and release no O2 (anoxygenic).

Why the other options are wrong

  • (b) · your answer Photosynthetic bacteria (other than cyanobacteria) do not release O2.
  • (c) · your answer Green algae release O2.
  • (d) · your answer This reverses the two.
NCERT point: Cyanobacteria are the exception among prokaryotes: their photosynthesis is oxygenic.
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