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.
Plastid composition of egg cells from green, white, and variegated four-o'clock plants.
Relative sizes of the sporophyte and gametophyte generations of bryophytes, ferns, and seed plants.
Plant-transpired water vapour mist rising from a tropical rain forest.
Structure of the water molecule
Jane Goodall first observed Gombe chimpanzees chewing leaves, then dipping the chewed-up “wadge” int