Multiple Choice
Water rises in plants primarily by cohesion-tension. Which of the following is not true about the cohesion-tension model?
A) Water loss (transpiration) is the driving force for water movement.
B) The "tension" of this model represents the excitability of the xylem cells.
C) Cohesion represents the tendency for water molecules to stick together by hydrogen bonds.
D) The physical forces in the capillary-sized xylem cells make it easier to overcome gravity.
E) The water potential of the air is more negative than the xylem.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: Plasmodesmata can change in number, and when
Q3: Phloem transport of sucrose is often described
Q4: One is most likely to see guttation
Q5: If you were to prune the shoot
Q6: Which of the following experimental procedures would
Q8: The ancestors of land plants were aquatic
Q9: A plant developed a mineral deficiency after
Q10: Given that early land plants most likely
Q11: What is the driving force for the
Q12: Which of the following is a correct