Transport in Plants Question 39
39. Transpiration and root pressure cause water to rise in plants by :
[2015 RS]
(a) Pulling and pushing it, respectively
(b) Pushing it upward
(c) Pushing and pulling it, respectively
(d) Pushing it upward
Show Answer
Answer : a
Hints & Solutions
(a) Transpiration creates pulling (Negative pressure) force. Root pressure creates positive pressure developed in xylem. It is measured by manometer.
