Qstnid -I-2- By Looking At Which Internal Structure Of A Plant Can You Tell Whether A Plant Is C<sub>3</sub> Or C<sub>4</sub>? Explain. - 13: Photosynthesis In Higher Plants

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#2
By looking at which internal structure of a plant can you tell whether a plant is C₃ or C₄? Explain.

Ans : The leaves of C₄ plants have a special anatomy called Kranz anatomy. This makes them different from C₃ plants. Special cells, known as bundle-sheath cells, surround the vascular bundles. These cells have a large number of chloroplasts. They are thick-walled and have no intercellular spaces. They are also impervious to gaseous exchange. All these anatomical features help prevent photorespiration in C₄ plants, thereby increasing their ability to photosynthesise.