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Transport In Plants

Question
CBSEENBI11003252
Wired Faculty App

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

  • imbibition force

  • osmotic force

  • cohesive force

  • electromagnetic force

Solution

C.

cohesive force

The most important force which pulls water up in the tall trees is the cohesive (inter-molecular) force between HO molecules. It also helps in maintaining the continuity of water column in tall trees.

Some More Questions From Transport in Plants Chapter

What is transmembrane pathway ?

Give the term for the ability to resist a pulling force.

Who introduced the apoplast—symplast concept ?

Why transpiration is more on lower surface than on upper surface of leaves ?

Give the term for the ability to rise in thin tubes. 

What is capillarity ?

Name the two forces responsible for the rise of water in a capillary tube.

Which force is first operative in translocation of water through capillarity : cohesive force or adhesive force ?

Name the driving force for water movements in plants.

What are the two factors which affect osmosis?

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