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Which of these features cannot help us differentiate between C3 and C4 plants?(a) Presence of Kranz anatomy(b) Presence of photorespiration(c) Presence of chloroplasts(d) Presence of bundle sheathThis question was addressed to me in semester exam.Query is from Higher Plants Photosynthesis topic in portion Photosynthesis in Higher Plants of Biology – Class 11

Answer»

Correct option is (c) Presence of chloroplasts

Easiest explanation: C4 plants show KRANZ ANATOMY in which bundle SHEATH cells surrounds the vascular BUNDLES. They lack photorespiration and show presence of bundle sheaths. HOWEVER, chloroplasts are present in both types of plants.



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