A-LevelBiologyTransport in plants9700/12 · May/June 2013 · Q281 Mark
Halophytes are plants that can survive in regions where they are regularly exposed to sea water. Sea water has a water potential of approximately –2500 kPa. Which adaptation would you expect halophytes to show?
Aroot hair cells with a very high water potential
Broot hair cells which accumulate salts and other solutes
Chigh density of stomata that are open most of the time
Dleaves that have a large surface area and a thick cuticle
✓ Correct answer
B: root hair cells which accumulate salts and other solutes
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