Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Nature & AnimalsWhich outcome occurs when a plant experiences extreme transpirational demand?
A)Xylem cavitation decreases water transport efficiency✓
B)Root pressure prevents all xylem column collapse
C)Phloem loading is upregulated proportionally
D)Guard cells maximize stomatal aperature size
💡 Explanation
Xylem cavitation occurs in plants under transpirational stress reducing the water transfer capability enabled by adhesion. This is because tension increases beyond that cohesion can withstand, therefore water transport is less efficient, rather than root pressure compensating or stomata opening completely.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Nature & Animals →- Which physiological response results when a freshwater teleost fish with a swim bladder migrates to saltwater?
- Which outcome occurs when prolonged cold exposure depletes glycogen?
- Which outcome occurs when a fish relies solely on diffusion rather than utilizes its swim's bladder?
- Which outcome occurs when reduced opercular pumping in fish encountering hypoxic conditions?
- Which physiological outcome occurs when a hibernating mammal's body temperature activates brown adipose tissue?
- Which consequence results when PEP carboxylase outcompetes RuBisCO?
