Root pressure helps in ascent of sap by
pumping food in phloem
pumping sap into xylem in roots
pumping sap in stem for sending it to roots
all of the above
Root pressure helps in ascent of sap by
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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Root pressure helps in ascent of sap by |
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