Question 18
Section A: choose the correct answer. The supplied key prints 2 points per question and 50 minutes. Source header says Qualifying Examinations; key says Taiwan (2).
How is the Casparian strip important to plants?
A. allows absorption of water
B. prevents water entering leaves
C. prevents minerals from being absorbed
D. blocks nutrients
How is the Casparian strip important to plants?
A. allows absorption of water
B. prevents water entering leaves
C. prevents minerals from being absorbed
D. blocks nutrients