Root pressure helps in ascent of sap by
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In an angiosperm main conduction of water occurs through ________.
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Maximum root pressure is observed when
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Guard cells differ from epidermal cells in having
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In guard cells, when sugar is converted into starch, what takes place to the stomatal pore?
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Soil water is mainly absorbed by ______.
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Dixon and Joly are associated with
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Which helps in opening of stomata?
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In a cell ruptures, on placing in a solution, the solution is said to be _____ with respect to cell sap
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The most widely accepted theory for ascent of sap in trees is
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