A) xylem is blocked
B) phloem is blocked
C) epidermis and few roots are removed
D) pith is removed
Correct Answer: A
Solution :
Wilting of plant is due to high rate of transpiration or low availability of water or water is available but the xylem is blocked (xylem conduct water from root to leaf and other parts). The phloem takes part in conduction (translocation) of food synthesized by leaf to different organs of the plant. On blocking of phloem, the root is starved. Epidermis is protective layer on stem, root and leaf. In leaf it contain stomata, which takes part in transpiration. On removing few roots the other branches function. Pith is the paranchymatous tissue in dicot plants. It provides mechanical support to the plant and no effect on wilting.
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