A) stem of Hydrilla
B) leaf of sunflower
C) bundle sheath of sugarcane leaf
D) mesophyll of grasses
Correct Answer: C
Solution :
In bundle sheath chloroplast of \[{{C}_{4}}\] plants like sugarcane, Zea mays, Chlories sp., Atriplex sp., Digittarea sp. etc., grana is absent. M D Hatch and C R Slack while worked on sugarcane found a new cycle of \[C{{O}_{2}}\] fixation in these plant. They named this cycle as \[{{C}_{4}}\]-cycle or Dicarboxylic acid cycle or B-carboxylation pathway or cooperative photosynthesis. Grana is well organized in chloroplast of Hydrilla, grasses, sunflower etc.
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