Water passes across leaf tissues by different routes as a result of
• differences in water potential
• the pull transmitted by cohesive forces between water molecules.
The diagram shows three routes by which water can travel.
Which row correctly identifies why water passes across leaf tissues by the different routes?
1 )
(differences in water potential) route 1 (pull transmitted by cohesive forces) routes 2 and 3
2 )
(differences in water potential) routes 1 and 3 (pull transmitted by cohesive forces) routes 2
3 )
(differences in water potential) routes 2 (pull transmitted by cohesive forces) routes 1 and 3
(differences in water potential) routes 2 and 3 (pull transmitted by cohesive forces) routes 1
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