Question 31 (1 point) The cells in the leaf responsible for photosynthesis are called vascular bundles. O companion cells. palisade cells. O stomata. Question 32 (1 point) The openings for transpiration and gas exchange in woody plants are called and Question 33 (1 point) In the theory of phloem movement in plants, a "sink" may be )a meristem, a companion cell, or a root.. a cell carrying out photosynthesis. a sieve cell, a companion cell, or a leaf. a meristem, a tuber, or a root. Question 34 (1 point) Select the true statement about tonicity in plant cells. Once a cell is turgid water does not enter it. A cell showing plasmolysis will be turgid. A wilted cell is held out by the pressure of water against the cell wall. A high solute concentration outside the cell will produce plasmolysis