WGU C190 Intro to Bio - Personal Practice exam 2023 with 100% correct answers

Water molecules binding to each other is called _______; water molecules binding to other molecules is called _______. Cohesion; adhesion Water molecules form hydrogen bonds because water is Polar Water can bind to the walls of these cells because they are _____ When water binds to the walls of the cells, this is called ________ Polar; adhesion Water molecules within these cells will also bind to each other. What is this called? Cohesion Dissolving sugar in water makes a _______. The sugar is the _____ and the water is the _____ Solution; solute; solvent As water moves up the plant, it carries matter with it (such as nutrients and some hormones). What are these materials called? Solutes What characteristic of water allows a paperclip to float on the surface of the water. Surface tension Why does mercury (Hg) not travel as far up the capillary tube as water does? Mercury is not as adhesive as water If the plant gets too dry, the water column can break. This creates an air bubble in the xylem. What happens to the water when the air bubble forms? The water is still adhering to the xylem walls, but the water column is no longer continuous. Explain why plants produce smaller cells during dry seasons. The smaller cells are more resistant to air bubbles. Explain why plants produce larger cells during wet seasons. These cells can transport more water.