What is the role of large bundle sheath cells found around the vascular bundles in C4 plants?
To protect the vascular tissue from high light intensity.
To provide the site for photorespiratory pathway.
To increase the number of chloroplast for the operation of Calvin cycle.
To enable the plant to tolerate high temperature.
the large bundle sheath cells in C4 plants (Kranz anatomy) are characterized by having a large number of chloroplasts . While the mesophyll cells perform the initial C4 fixation, the Calvin pathway (biosynthetic phase) takes place specifically in the bundle sheath cells . These cells are rich in RuBisCO and allow the Calvin cycle to operate efficiently by maintaining a high concentration of CO2 . Photorespiration is absent in C4 plants , making option 2 incorrect.
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