In this lab, students will examine differences between C3 and C4 plants in their transpiration rates. In this laboratory exercise, you will investigate different structural and functional aspects of transpiration. You will observe different components of the plant vascular system and conduct an experimental manipulation of corn (Zea mays), a C4 plant, and sunflower (Helianthus annuus), a C3 plant. The results of this exploration will demonstrate the fundamental principles of transpiration and th…