WGU C190 Intro to Bio - Personal Practice Questions Exam
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: Water molecules binding to each other is called ; water molecules binding to
other molecules is called .
Answer:
Cohesion; adhesion
Q: Water molecules form hydrogen bonds because water is
Answer:
Polar
Q: Water can bind to the walls of these cells because they are When water binds
to the walls of the cells, this is called
Answer:
Polar; adhesion
Q: Water molecules within these cells will also bind to each other. What is this
called?
Answer:
Cohesion
Q: Dissolving sugar in water makes a . The sugar is the and the water is the
Answer:
Solution; solute; solvent
Q: As water moves up the plant, it carries matter with it (such as nutrients and
some hormones). What are these materials called?
Answer:
Solutes
Q: What characteristic of water allows a paperclip to float on the surface of the
water.
Answer:
Surface tension
, Q: Why does mercury (Hg) not travel as far up the capillary tube as water does?
Answer:
Mercury is not as adhesive as water
Q: 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.
Q: Explain why plants produce smaller cells during dry seasons.
Answer:
The smaller cells are more resistant to air bubbles.
Q: Explain why plants produce larger cells during wet seasons.
Answer:
These cells can transport more water.
Q: Organic molecules take many different shapes. This is because:
Answer:
Carbon can form up to four covalent bonds with other molecules, allowing for a
variety of structures
Q: Which of the following molecules might be broken down (hydrolyzed) to
produce simple sugars? Select all that apply; more than one is correct.
Answer:
Maltose (a disaccharide), cellulose, starch
Q: Which molecule is abundant in seeds and is easily digested to yield glucose?
Answer:
Starch
Q: Nonpolar molecules that lack highly electronegative atoms such as oxygen are
Answer:
hydrophobic
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: Water molecules binding to each other is called ; water molecules binding to
other molecules is called .
Answer:
Cohesion; adhesion
Q: Water molecules form hydrogen bonds because water is
Answer:
Polar
Q: Water can bind to the walls of these cells because they are When water binds
to the walls of the cells, this is called
Answer:
Polar; adhesion
Q: Water molecules within these cells will also bind to each other. What is this
called?
Answer:
Cohesion
Q: Dissolving sugar in water makes a . The sugar is the and the water is the
Answer:
Solution; solute; solvent
Q: As water moves up the plant, it carries matter with it (such as nutrients and
some hormones). What are these materials called?
Answer:
Solutes
Q: What characteristic of water allows a paperclip to float on the surface of the
water.
Answer:
Surface tension
, Q: Why does mercury (Hg) not travel as far up the capillary tube as water does?
Answer:
Mercury is not as adhesive as water
Q: 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.
Q: Explain why plants produce smaller cells during dry seasons.
Answer:
The smaller cells are more resistant to air bubbles.
Q: Explain why plants produce larger cells during wet seasons.
Answer:
These cells can transport more water.
Q: Organic molecules take many different shapes. This is because:
Answer:
Carbon can form up to four covalent bonds with other molecules, allowing for a
variety of structures
Q: Which of the following molecules might be broken down (hydrolyzed) to
produce simple sugars? Select all that apply; more than one is correct.
Answer:
Maltose (a disaccharide), cellulose, starch
Q: Which molecule is abundant in seeds and is easily digested to yield glucose?
Answer:
Starch
Q: Nonpolar molecules that lack highly electronegative atoms such as oxygen are
Answer:
hydrophobic
