CBSE Class 7 Answered
Sir or madam , Why does transportation take place in plants when it is against gravity???
Asked by purbisrestha11 | 24 Feb, 2021, 06:19: PM
Expert Answer
There are three hypotheses that explain the movement of water up a plant against gravity.
- Root pressure pushes water up
- Capillary action draws water up within the xylem
- Cohesion-tension pulls water up the xylem
Answered by Sheetal Kolte | 25 Feb, 2021, 11:22: AM
Concept Videos
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Transport in Animals and Plants
Transport of water and nutrients in plants
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