Photosynthesis in Higher Plants

Question

The net requirement of assimilatory power for the formation of 6 hexose molecules in maize plant is

  • 72 ATP, 48 NADPH

  • 90 ATP, 60 NADPH

  • 108 ATP, 72 NADPH

  • 180 ATP, 72 NADPH

Answer

D.

180 ATP, 72 NADPH

C4 plants (maize) require 30 ATP and 12 NADPH fpr synthesis of one hexose molecule. Therefore synthesis of six hexose molecules requires 180 ATP and 72 NADPH.

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