FIRST PUBLISH OCTOBER 2024
BIO 116 Final Exam Prep Questions and
Answers
Cancer cell activity can be monitored using a PET scanner and isotopes. When an individual consumes
glucose containing carbon-11, the PET scanner shows areas where cells are rapidly growing and
consuming the radioactive glucose. What is the difference between the carbon-12 atoms in your cells
normally and carbon-11 in the radioactive sugar?
a. Carbon-11 has one fewer electrons than carbon-12
b. Carbon-11 has one more proton than carbon-12
c. Correct! Carbon-11 has one fewer neutrons than carbon-12
d. Carbon-11 has one more electron than carbon-12
e. Carbon-11 has one fewer protons than carbon-12 - Ans:✔✔-Carbon-11 has one fewer neutrons than
carbon-12
In biological molecules, hydrogen bonds typically form between hydrogen and
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a. oxygen or nitrogen
b. hydrogen or carbon
c. sulfur or phosphorus
d. calcium or iron - Ans:✔✔-oxygen or nitrogen.
Chemical X is hydrophilic and polar. That means it
a. will easily cross a biological membrane
b. will be soluble in water
c. will be soluble in water AND will easily cross a biological membrane
d. will be insoluble in water AND will easily cross a biological membrane
e. will be insoluble in water - Ans:✔✔-will be soluble in water
If 2 atoms share electrons, a ___ bond is formed.
a. ionic
b. covalent
c. hydrogen
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d. hypertonic - Ans:✔✔-covalent
Water is essential to all living cells. How does water reach cells in the leaves of a Giant Sequoia tree?
a. The leaves absorb water through the surface of the leaf.
b. Water molecules evaporate out of the leaves. More water molecules are transported up the tree trunk
by sticking to each other and the inner surface of the vascular tissue.
c. Active transport of water through a series of pumps.
s. Covalent bonds form between the water molecules forming a chain up the tree. - Ans:✔✔-b. Water
molecules evaporate out of the leaves. More water molecules are transported up the tree trunk by
sticking to each other and the inner surface of the vascular tissue.
You have discovered a new species of bacteria that grows in the Bonneville Salt Flats in Utah. What
element below would likely be MOST abundant in cells of this species?
a. sodium
b. chloride
c. phosphorus
d. iron - Ans:✔✔-phosphorus
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The pigment chlorophyll has a domain that is inserted into the thylakoid membrane of the chloroplast,
but it also has a domain that is located in the aqueous stroma. What type of molecule is chlorophyll?
a. hydrophobic
b. hygroscopic
c. amphipathic
d. hydrophillic - Ans:✔✔-amphipathic
The physical property of cells having the greatest impact on the chemical reactions of life is that
reactions mainly take place in a/an ____ environment.
a. acidic
b. basic
c. aqueous
d. stable - Ans:✔✔-aqueous
Which of the following would be the MOST abundant in a human muscle cell?
a. sulfur
b. zinc
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