A-LevelBiologyTransport in plants9700/12 · Oct/Nov 2015 · Q231 Mark
What is the role of the Casparian strip?
Ato act as a site for active transport of ions into the xylem
Bto increase root pressure, increasing transpiration
Cto lower the water potential in the xylem
Dto prevent water moving back into the cortex from the xylem
✓ Correct answer
D: to prevent water moving back into the cortex from the xylem
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Transport in plants and see which topics are most likely to come up next.
Sign up free →