Question
Biology Question on Transport in Plants
If the pressure potential is +0.16 megapascals (mPa) and the osmotic potential is -0.24 megapascals, then the water potential would be
A
+ 0.4 mPa
B
+ 0.08 mPa
C
- 0.08 mPa
D
+ 0.16 mPa
Answer
- 0.08 mPa
Explanation
Solution
The water potential is the sum of the osmotic potential (usually negative) and the pressure potential (usually positive), so WP = -0.24 + 0.16 = -0.08 mPa.