NEET 2015 Biology question

Biology Transport in Plants NEET 2015

Not in NEET syllabus

Transpiration and root pressure cause water to rise in plants by :

(1)Pulling and pushing it, respectivelyCorrect
(2)Pushing it upward
(3)Pushing and pulling it, respectively
(4)Pulling it upward

Answer: (1)

Solution

Transpiration creates a tension (negative pressure) at the top of the xylem column; this transpiration pull draws water up the xylem from above, i.e. it pulls water. Root pressure is a positive hydrostatic pressure developed in the roots by active

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-091789