Neet Solved Paper 2015 Question 18
Question: Transpiration and root pressure cause water to rise in plants by
Options:
A) pulling it upward
B) pulling and pushing it, respectively
C) pushing it upward
D) pushing and pulling it, respectively
Show Answer
Answer:
Correct Answer: B) pulling and pushing it, respectively
Solution:
- Transpiration creates a negative pressure (pulling) in the leaves and upper parts of the plant, which helps draw water upward through the xylem. Root pressure, on the other hand, is a positive pressure (pushing) generated in the roots that helps push water upward from the roots into the xylem.
BETA
