Q23 / 160 · JIPMER 2006 · Botany

The most important force which pulls water up in tall trees is :

A
imbibition force
B
osmotic force
Correct answer
C
cohesive force
D
electromagnetic force

Solution

The most important force which pulls water up in the tall trees is the cohesive (inter-molecular) force between $\mathrm{H}_2 \mathrm{O}$ molecules. It also helps in maintaining the continuity of water column in tall trees.

Hence, the correct answer is option: 'C'.

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