MHT CET Medical202626 April 2026Morning ShiftBiologyTransport in PlantsActual
The value of root pressure is about __________ to __________ bars which is enough to pump water to a height of 10 to 20 meters in plants.
Options
- A+1 to +2
- B+10 to +20
- C-1 to -2
- D-10 to -20
Correct answer
A. +1 to +2
Step-by-step solution
Root pressure is a positive hydrostatic pressure that develops in the roots due to the active absorption of ions from the soil. The typical value of root pressure is about +1 to +2 bars. Since 1 bar of pressure can support a water column of approximately 10 meters, a root pressure of +1 to +2 bars is sufficient to pump water to a height of 10 to 20 meters in plants. Answer: +1 to +2