As an Undergraduate Research Assistant in the Lab of the Famous

Multiple Choice

As an undergraduate research assistant in the lab of the famous Dr.S.Nameerf,your duties involve measuring water potential in experimental soil-plant-atmosphere systems.Assume you make a series of measurements in a system under normal daylight conditions,with stomata open and photosynthesis occurring.Which of the following correctly depicts the trend your measurement data should follow if the cohesion-tension mechanism is operating?

A) ψsoil < ψroots = ψleaves < ψatmosphere
B) ψatmosphere < ψleaves = ψroots < ψsoil
C) ψsoil < ψroots < ψleaves < ψatmosphere
D) ψatmosphere < ψleaves < ψroots < ψsoil