CSU BMS 300 FINAL EXAM QUESTIONS
COMPLETE WITH 100% VERIFIED
ANSWERS
\.Which of the following bonds are responsible for the dipole moment of a water
molecule?
a. hydrogen bonds
b. ionic bonds
c. polar bonds
d. covalent bonds - ANSWERS✔-d. covalent bonds
\.There are currently clinical trials researching the efficacy of mRNA vaccines to
protect against HIV, Zika, rabies, and Ebola viruses. Upon injection of an mRNA
vaccine, mRNA would be read:
a. 3'-5' by the large ribosomal subunit
b. 5'-3' by the large ribosomal subunit
c. 3'-5' by the small ribosomal subunit
d. 5'-3' by the small ribosomal subunit - ANSWERS✔-d. 5'-3' by the small
ribosomal subunit
\.Which of the following may contain a nuclear localization factor?
,a. DNA, RNA, and histone proteins
b. DNA and RNA
c. RNA and polymerase proteins
d. DNA and secreted proteins - ANSWERS✔-c. RNA and polymerase proteins
\.Which of the following ions has a higher intracellular concentration? a. Na+
b. Ca2+
c. Cl-
d. K+ - ANSWERS✔-d. K+
\.Which polymerase is responsible for the production of mRNA?
a. RNA polymerase I
b. RNA polymerase II
c. RNA polymerase III
d. All of the above - ANSWERS✔-b. RNA polymerase II
\.Which of the following proteins would have a signal peptide?
a. Na+/K+ ATPases
b. clathrin proteins
c. spliceosomes
d. myosin motor proteins - ANSWERS✔-a. Na+/K+ ATPases
\.The DNA in mitochondria would be expected to be:
,a. bound to histones
b. contained in a nucleus
c. organized in chromosomes
d. circular - ANSWERS✔-d. circular
\.Between the time pre-mRNA is generated and the time when introns are
removed, a type of RNA called SnoRNA adds a methyl group to some bases on the
pre-mRNA. Where would you expect SnoRNA to function?
a. ribosome
b. nucleus
c. rough endoplasmic reticulum
d. cytoplasm - ANSWERS✔-b. nucleus
\.The R groups of an integral protein that interact with extracellular fluid are most
likely:
a. hydrophilic
b. hydrophobic
c. amphipathic
d. phospholipids - ANSWERS✔-a. hydrophilic
\.Embryonic germ cells are transcriptionally dormant. You would expect these
cells to have:
a. high levels of spliceosomes
b. DNA primarily in euchromatin form
, c. DNA primarily in heterochromatin form
d. high levels ATP synthesis - ANSWERS✔-c. DNA primarily in heterochromatin
form
\.AMPA receptors bind the neurotransmitter glutamate in the extracellular space.
Binding opens the AMPA receptor and permits the movement of ions across the
plasma membrane. AMPA receptors are examples of:
a. voltage-gated channels
b. ligand-gated channels
c. mechanically-gated channels
d. non-gated channels - ANSWERS✔-b. ligand-gated channels
\.Capsaicin is known as the "spicy molecule." After eating spicy food, you might
reach for a glass of water to wash away the spice, but the water does nothing to
curb the burning sensation in your mouth. You can assume that capsaicin is
__________.
a. amphipathic
b. hydrophilic
c. hydrophobic
d. polar - ANSWERS✔-c. hydrophobic
\.Keratin, which is found in keratinocytes, is an example of a(n):
a. ATPase
b. actin filament
c. intermediate filament
COMPLETE WITH 100% VERIFIED
ANSWERS
\.Which of the following bonds are responsible for the dipole moment of a water
molecule?
a. hydrogen bonds
b. ionic bonds
c. polar bonds
d. covalent bonds - ANSWERS✔-d. covalent bonds
\.There are currently clinical trials researching the efficacy of mRNA vaccines to
protect against HIV, Zika, rabies, and Ebola viruses. Upon injection of an mRNA
vaccine, mRNA would be read:
a. 3'-5' by the large ribosomal subunit
b. 5'-3' by the large ribosomal subunit
c. 3'-5' by the small ribosomal subunit
d. 5'-3' by the small ribosomal subunit - ANSWERS✔-d. 5'-3' by the small
ribosomal subunit
\.Which of the following may contain a nuclear localization factor?
,a. DNA, RNA, and histone proteins
b. DNA and RNA
c. RNA and polymerase proteins
d. DNA and secreted proteins - ANSWERS✔-c. RNA and polymerase proteins
\.Which of the following ions has a higher intracellular concentration? a. Na+
b. Ca2+
c. Cl-
d. K+ - ANSWERS✔-d. K+
\.Which polymerase is responsible for the production of mRNA?
a. RNA polymerase I
b. RNA polymerase II
c. RNA polymerase III
d. All of the above - ANSWERS✔-b. RNA polymerase II
\.Which of the following proteins would have a signal peptide?
a. Na+/K+ ATPases
b. clathrin proteins
c. spliceosomes
d. myosin motor proteins - ANSWERS✔-a. Na+/K+ ATPases
\.The DNA in mitochondria would be expected to be:
,a. bound to histones
b. contained in a nucleus
c. organized in chromosomes
d. circular - ANSWERS✔-d. circular
\.Between the time pre-mRNA is generated and the time when introns are
removed, a type of RNA called SnoRNA adds a methyl group to some bases on the
pre-mRNA. Where would you expect SnoRNA to function?
a. ribosome
b. nucleus
c. rough endoplasmic reticulum
d. cytoplasm - ANSWERS✔-b. nucleus
\.The R groups of an integral protein that interact with extracellular fluid are most
likely:
a. hydrophilic
b. hydrophobic
c. amphipathic
d. phospholipids - ANSWERS✔-a. hydrophilic
\.Embryonic germ cells are transcriptionally dormant. You would expect these
cells to have:
a. high levels of spliceosomes
b. DNA primarily in euchromatin form
, c. DNA primarily in heterochromatin form
d. high levels ATP synthesis - ANSWERS✔-c. DNA primarily in heterochromatin
form
\.AMPA receptors bind the neurotransmitter glutamate in the extracellular space.
Binding opens the AMPA receptor and permits the movement of ions across the
plasma membrane. AMPA receptors are examples of:
a. voltage-gated channels
b. ligand-gated channels
c. mechanically-gated channels
d. non-gated channels - ANSWERS✔-b. ligand-gated channels
\.Capsaicin is known as the "spicy molecule." After eating spicy food, you might
reach for a glass of water to wash away the spice, but the water does nothing to
curb the burning sensation in your mouth. You can assume that capsaicin is
__________.
a. amphipathic
b. hydrophilic
c. hydrophobic
d. polar - ANSWERS✔-c. hydrophobic
\.Keratin, which is found in keratinocytes, is an example of a(n):
a. ATPase
b. actin filament
c. intermediate filament
