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← Nature & AnimalsWhich primary consequence minimizes photorespiration in C4 plants under hot, dry conditions?
A)Spatial separation of initial carbon fixation✓
B)Increased rubisco concentration in mesophyll cells
C)Temporal compartmentalization of water storage
D)Reduced chlorophyll content in bundle sheath cells
💡 Explanation
Under heat, C4 plants spatially separate initial carbon fixation using PEP carboxylase in mesophyll cells and then transfer fixed carbon to bundle sheath cells containing rubisco, minimizing oxygen exposure. Therefore option A results, rather than the other responses which don't address spatial biochemical separation needed to handle heat stress.
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