Q19 / 164 · NTA Abhyas (NEET) 2020 · Botany · Transport in Plants

Root pressure is maximum when

  • A
    Transpiration is high and absorption is very low
  • Correct answer
    B
    Transpiration is very low and absorption is high
  • C
    Transpiration and absorption both are high
  • D
    Transpiration and absorption both are low.

Solution

Root pressure is the pressure that develops in tracheary elements of xylem due to the accumulation of water. It occurs due to active absorption of water and is maximum when the rate of absorption is high and the rate of transpiration is low.

Hence, the correct answer is option: 'B'.

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