Q95 / 200 · MHT CET - Medical 2026 (26 April Shift 1) · Biology
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.
- Correct answerA$+1$ to $+2$
- B$+10$ to $+20$
- C$-1$ to $-2$
- D$-10$ to $-20$
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 $+2$
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 $+2$
Hence, the correct answer is option: 'A'.