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Why is the productivity of C4 plants better than that of C3 plants?

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Why is the productivity of C4 plants better than that of C3 plants?

(a) C4 plants show Kranz anatomy

(b) C4 plants lack photorespiration

(c) C4 plants show high phosphoglycerate formation

(d) C4 plants show high phosphoglycolate formation

The question was asked in an online interview.

This is a very interesting question from Higher Plants Photosynthesis topic in portion Photosynthesis in Higher Plants of Biology – Class 11

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Correct option is (b) C4 plants lack photorespiration

For explanation I would say: The productivity of C4 plants better than that of C3 plants as C4 plants lack photorespiration. C4 plants do not show phosphoglycerate and phosphoglycolate formation, unlike C3 plants.

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