What are the advantage of bundle sheath cell chloroplast lack granal
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Answer:
Due to absence of grana so no photophosphorylation thus no formation of O2 takes place. It is important because RuBisCO has an affinity for both CO2 and O2. To prevent this plant ensures to keep the cell wall of bundle sheath cell impermeable to gases and thick.
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Agranal chloroplasts are the characteristic feature of C4C4 plants. The agranal chloroplasts were found to be located in bundle sheath cells. The C4C4 plants often possess characteristic leaf anatomy called kranz anatomy. Their vascular bundles are surrounded by two rings of cells; the inner ring, called bundle sheath cells, contains starch-rich chloroplasts lacking grana, which differ from those in mesophyll cells present as the outer ring.