WGU C190 Intro to Bio - Personal Practice Questions & Answers Rated 100
Correct | Updated
1. Water molecules binding to each other is Cohesion; adhesion
called ; water molecules binding to
other molecules is called .
2. Water molecules form hydrogen bonds be- Polar
cause water is
3. Water can bind to the walls of these cells Polar; adhesion
because they are When water binds to
the walls of the cells, this is called
4. Water molecules within these cells will also Cohesion
bind to each other. What is this called?
5. Dissolving sugar in water makes a . Solution; solute; solvent
The sugar is the and the water is the
6. As water moves up the plant, it carries mat- Solutes
ter with it (such as nutrients and some hor-
mones). What are these materials called?
7. What characteristic of water allows a paper- Surface tension
clip to float on the surface of the water.
8. Why does mercury (Hg) not travel as far up Mercury is not as adhesive as water
the capillary tube as water does?
9. If the plant gets too dry, the water column The water is still adhering to the xylem
can break. This creates an air bubble in the walls, but the water column is no longer
xylem. What happens to the water when the continuous.
air bubble forms?
, WGU C190 Intro to Bio - Personal Practice Questions & Answers Rated 100
Correct | Updated
10. Explain why plants produce smaller cells The smaller cells are more resistant to air
during dry seasons. bubbles.
11. Explain why plants produce larger cells dur- These cells can transport more water.
ing wet seasons.
12. Organic molecules take many different Carbon can form up to four covalent
shapes. This is because: bonds with other molecules, allowing for
a variety of structures
13. Which of the following molecules might be Maltose (a disaccharide), cellulose,
broken down (hydrolyzed) to produce simple starch
sugars? Select all that apply; more than one
is correct.
14. Which molecule is abundant in seeds and is Starch
easily digested to yield glucose?
15. Nonpolar molecules that lack highly elec- hydrophobic
tronegative atoms such as oxygen are
16. Ionic substances and polar molecules are Hydrophillic
because they dissolve other polar mol-
ecules or molecules with polar functional
groups like hydroxyl groups.
17. Nonpolar molecules are because hydrophobic
they usually contain many carbon hydrogen
bonds (C-H).
18. is the most abundant organic mol- Cellulose
ecule on planet Earth. It is a polysaccha-
ride that is used as a structural material in
Correct | Updated
1. Water molecules binding to each other is Cohesion; adhesion
called ; water molecules binding to
other molecules is called .
2. Water molecules form hydrogen bonds be- Polar
cause water is
3. Water can bind to the walls of these cells Polar; adhesion
because they are When water binds to
the walls of the cells, this is called
4. Water molecules within these cells will also Cohesion
bind to each other. What is this called?
5. Dissolving sugar in water makes a . Solution; solute; solvent
The sugar is the and the water is the
6. As water moves up the plant, it carries mat- Solutes
ter with it (such as nutrients and some hor-
mones). What are these materials called?
7. What characteristic of water allows a paper- Surface tension
clip to float on the surface of the water.
8. Why does mercury (Hg) not travel as far up Mercury is not as adhesive as water
the capillary tube as water does?
9. If the plant gets too dry, the water column The water is still adhering to the xylem
can break. This creates an air bubble in the walls, but the water column is no longer
xylem. What happens to the water when the continuous.
air bubble forms?
, WGU C190 Intro to Bio - Personal Practice Questions & Answers Rated 100
Correct | Updated
10. Explain why plants produce smaller cells The smaller cells are more resistant to air
during dry seasons. bubbles.
11. Explain why plants produce larger cells dur- These cells can transport more water.
ing wet seasons.
12. Organic molecules take many different Carbon can form up to four covalent
shapes. This is because: bonds with other molecules, allowing for
a variety of structures
13. Which of the following molecules might be Maltose (a disaccharide), cellulose,
broken down (hydrolyzed) to produce simple starch
sugars? Select all that apply; more than one
is correct.
14. Which molecule is abundant in seeds and is Starch
easily digested to yield glucose?
15. Nonpolar molecules that lack highly elec- hydrophobic
tronegative atoms such as oxygen are
16. Ionic substances and polar molecules are Hydrophillic
because they dissolve other polar mol-
ecules or molecules with polar functional
groups like hydroxyl groups.
17. Nonpolar molecules are because hydrophobic
they usually contain many carbon hydrogen
bonds (C-H).
18. is the most abundant organic mol- Cellulose
ecule on planet Earth. It is a polysaccha-
ride that is used as a structural material in
