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← Nature & AnimalsWhich consequence follows internal air space expansion in cranberry fruits under high temperature?
A)Increased osmotic pressure in epidermal cells
B)Xylem embolism due to vapour lock✓
C)Enhanced photosynthetic output per leaf
D)Reduced carbohydrate translocation via phloem
💡 Explanation
Xylem embolism occurs because higher fruit temperatures cause air spaces to expand, inducing vapour lock. This vapour lock creates negative pressure, leading to xylem cavitation that impairs plant transpiration. Therefore, xylem embolism occurs, rather than improved photosynthesis at the leaves.
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