In plant anatomy, the 'Bundle sheath' cells in C4 plants are characterized by having: MCQ with Answer and Explanation

In plant anatomy, the 'Bundle sheath' cells in C4 plants are characterized by having:
A. No chloroplasts
B. Large, agranal (lacking grana) chloroplasts
C. Small chloroplasts with well-developed grana
D. Only amyloplasts
Answer: Option B
Solution (By JKSSB Mock Tests)
In C4 plants, the leaves exhibit Kranz anatomy, where the vascular bundles are surrounded by a distinct layer of bundle sheath cells. These bundle sheath cells are large and contain numerous, large chloroplasts that lack grana (agranal). Because they lack grana, they cannot perform the light-dependent reactions (which require PSII, located in the grana) but are highly efficient at performing the Calvin cycle (light-independent reactions) in a high CO2 environment, minimizing photorespiration.

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