Differentiate Between Source and Sink Tissues

Q34: The pressure flow model of translocation depends

Q60: Stomata close when<br>A) the abscisic acid level

Q61: The energy that drives water into root

Q62: Aquaporins<br>A) actively pump water.<br>B) change the direction

Q63: When a tree is girdled, the bark

Q64: Explain how transpiration, cohesion, and tension work

Q66: Which of the following causes the root

Q67: Which property accounts for the movement of

Q68: Pumping protons (H⁺) out of a cell

Q70: Plant cells that lack cell walls, called