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WGU C190 INTRO TO BIO - EXAM PRACTICE
2025| BRAND NEW ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND CORRECT
SOLUTIONS| GUARANTEED VALUE PACK| ACE
YOUR GRADES.
1. Water molecules binding to each other is called _______; water
molecules binding to other molecules is called _______. - Correct
Answer-Cohesion; adhesion
2. Water molecules form hydrogen bonds because water is - Correct
Answer-Polar
3. Water can bind to the walls of these cells because they are _____ When
water binds to the walls of the cells, this is called ________ - Correct
Answer-Polar; adhesion
4. Water molecules within these cells will also bind to each other. What is
this called? - Correct Answer-Cohesion
5. Dissolving sugar in water makes a _______. The sugar is the _____ and
the water is the _____ - Correct Answer-Solution; solute; solvent
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6. As water moves up the plant, it carries matter with it (such as nutrients
and some hormones). What are these materials called? - Correct
Answer-Solutes
7. What characteristic of water allows a paperclip to float on the surface of
the water. - Correct Answer-Surface tension
8. Why does mercury (Hg) not travel as far up the capillary tube as water
does? - Correct Answer-Mercury is not as adhesive as water
9. 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? - Correct Answer-The water is still adhering to the xylem walls,
but the water column is no longer continuous.
10. Explain why plants produce smaller cells during dry seasons. -
Correct Answer-The smaller cells are more resistant to air bubbles.
11. Explain why plants produce larger cells during wet seasons. - Correct
Answer-These cells can transport more water.
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12. Organic molecules take many different shapes. This is because: -
Correct Answer-Carbon can form up to four covalent bonds with other
molecules, allowing for a variety of structures
13. Which of the following molecules might be broken down (hydrolyzed)
to produce simple sugars? Select all that apply; more than one is
correct. - Correct Answer-Maltose (a disaccharide), cellulose, starch
14. Which molecule is abundant in seeds and is easily digested to yield
glucose? - Correct Answer-Starch
15. Nonpolar molecules that lack highly electronegative atoms such as
oxygen are - Correct Answer-hydrophobic
16. Ionic substances and polar molecules are _____ because they
dissolve other polar molecules or molecules with polar functional groups
like hydroxyl groups. - Correct Answer-Hydrophillic
17. Nonpolar molecules are ______ because they usually contain many
carbon hydrogen bonds (C-H). - Correct Answer-hydrophobic
WGU C190 INTRO TO BIO - EXAM PRACTICE
2025| BRAND NEW ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND CORRECT
SOLUTIONS| GUARANTEED VALUE PACK| ACE
YOUR GRADES.
1. Water molecules binding to each other is called _______; water
molecules binding to other molecules is called _______. - Correct
Answer-Cohesion; adhesion
2. Water molecules form hydrogen bonds because water is - Correct
Answer-Polar
3. Water can bind to the walls of these cells because they are _____ When
water binds to the walls of the cells, this is called ________ - Correct
Answer-Polar; adhesion
4. Water molecules within these cells will also bind to each other. What is
this called? - Correct Answer-Cohesion
5. Dissolving sugar in water makes a _______. The sugar is the _____ and
the water is the _____ - Correct Answer-Solution; solute; solvent
, Page |2
6. As water moves up the plant, it carries matter with it (such as nutrients
and some hormones). What are these materials called? - Correct
Answer-Solutes
7. What characteristic of water allows a paperclip to float on the surface of
the water. - Correct Answer-Surface tension
8. Why does mercury (Hg) not travel as far up the capillary tube as water
does? - Correct Answer-Mercury is not as adhesive as water
9. 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? - Correct Answer-The water is still adhering to the xylem walls,
but the water column is no longer continuous.
10. Explain why plants produce smaller cells during dry seasons. -
Correct Answer-The smaller cells are more resistant to air bubbles.
11. Explain why plants produce larger cells during wet seasons. - Correct
Answer-These cells can transport more water.
, Page |3
12. Organic molecules take many different shapes. This is because: -
Correct Answer-Carbon can form up to four covalent bonds with other
molecules, allowing for a variety of structures
13. Which of the following molecules might be broken down (hydrolyzed)
to produce simple sugars? Select all that apply; more than one is
correct. - Correct Answer-Maltose (a disaccharide), cellulose, starch
14. Which molecule is abundant in seeds and is easily digested to yield
glucose? - Correct Answer-Starch
15. Nonpolar molecules that lack highly electronegative atoms such as
oxygen are - Correct Answer-hydrophobic
16. Ionic substances and polar molecules are _____ because they
dissolve other polar molecules or molecules with polar functional groups
like hydroxyl groups. - Correct Answer-Hydrophillic
17. Nonpolar molecules are ______ because they usually contain many
carbon hydrogen bonds (C-H). - Correct Answer-hydrophobic
