Out of the two statements given here :-(A) C | vedclass

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(A) Statement $(A)$ is correct because $C_4$ plants have a specialized anatomy (Kranz anatomy) and a mechanism to concentrate $CO_2$ around the enzyme

Vedclass · Accepted Answer

Only $(A)$ is correct

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(A) Statement $(A)$ is correct because $C_4$ plants have a specialized anatomy (Kranz anatomy) and a mechanism to concentrate $CO_2$ around the enzyme $RuBisCO$,which minimizes photorespiration and increases photosynthetic efficiency and productivity.Statement $(B)$ is incorrect because photorespiration in $C_3$ plants is triggered by high $O_2$ concentration and low $CO_2$ concentration,not high $CO_2$ concentration. High $CO_2$ levels actually suppress photorespiration in $C_3$ plants.

Out of the two statements given here $:-$
$(A) \ C_4$ plants are more effective in productivity as compared to $C_3$ plants.
$(B) \ C_3$ plants show photorespiration at high $CO_2$ concentration.

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Out of the two statements given here $:-$$(A) \ C_4$ plants are more effective in productivity as compared to $C_3$ plants.$(B) \ C_3$ plants show photorespiration at high $CO_2$ concentration.