Q.

C4 plants are most efficient plants of tropical climate and

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By Expert Faculty of Sri Chaitanya

shows photorespiration

have large number of chloroplasts and thick walls of bundle sheath cells

form 4-C organic acids in bundle sheath cell

perform primary CO2 fixation in bundle sheath cells

answer is 2.

(Detailed Solution Below)

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Detailed Solution

C4 plants are special: They have a special type of leaf anatomy, they tolerate higher temperatures, they show a response to high light intensities, they lack a process called photorespiration and have greater productivity of biomass. The bundle sheath cells of C4 plants may form several layers around the vascular bundles; they are characterised by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.

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