C190 WGU BIOLOGY FINAL PAPER 2026
QUESTIONS WITH FULL ANSWERS
◉ When water binds to the walls of the cells, this is called an.
Answer: Adhesion
◉ Water molecules within these cells will also bind to each other.
What is this called? Answer: Cohesion
◉ Dissolving sugar in water makes a Answer: Solution
◉ The sugar is the Answer: Solute
◉ The water is the Answer: Sovent
◉ As water moves up the plant, it carries matter with it (such as
nutrients and some hormones). What are these materials called?
Answer: Solutes
◉ What characteristic of water allows this paperclip to float on the
surface of the water? Answer: Surface tension
, ◉ Why does mercury (Hg) not travel as far up the capillary tube as
water does? Answer: 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? Answer: 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?
Answer: The smaller cells are more resistant to air bubbles
◉ Explain why plants produce larger cells during wet seasons?
Answer: These cells can transport more water
◉ Which molecule is abundant in seeds and is easily digested to
yield glucose? Answer: Starch
◉ Both starch and glucose have what primary function? Answer:
Fuel / storage of energy
◉ Hydrophobic molecules Answer: Does not interact with water
QUESTIONS WITH FULL ANSWERS
◉ When water binds to the walls of the cells, this is called an.
Answer: Adhesion
◉ Water molecules within these cells will also bind to each other.
What is this called? Answer: Cohesion
◉ Dissolving sugar in water makes a Answer: Solution
◉ The sugar is the Answer: Solute
◉ The water is the Answer: Sovent
◉ As water moves up the plant, it carries matter with it (such as
nutrients and some hormones). What are these materials called?
Answer: Solutes
◉ What characteristic of water allows this paperclip to float on the
surface of the water? Answer: Surface tension
, ◉ Why does mercury (Hg) not travel as far up the capillary tube as
water does? Answer: 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? Answer: 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?
Answer: The smaller cells are more resistant to air bubbles
◉ Explain why plants produce larger cells during wet seasons?
Answer: These cells can transport more water
◉ Which molecule is abundant in seeds and is easily digested to
yield glucose? Answer: Starch
◉ Both starch and glucose have what primary function? Answer:
Fuel / storage of energy
◉ Hydrophobic molecules Answer: Does not interact with water
