When considering an open reading frame, what is the first amino acid of the polypeptide
that is translated? - ANSWER MET
You recently discovered a novel organic compound that prevents the function of ribosomes
(all types). This could be used to treat which type of infection in plants? -
ANSWER Neither bacterial nor viral infections
A mutation arose in the Kozak consensus sequence of a gene (all other aspects of the gene
are unaffected). As a result, you would expect abnormal: - ANSWER Translation of
the gene product
The promoter sequence of a gene would be found in: - ANSWER DNA only
Which of the following molecules can enter a cell via facilitated diffusion (assume any
necessary membrane proteins are present and that the concentration is higher outside the
cell than inside the cell)? - ANSWER Na+ and glucose
Carrot slices placed in a 2 g/L salt solution for several hours become flaccid (limp). Carrot
slices placed in fresh water for several hours become turgid (stiff). Why? -
ANSWER The fresh water is hypotonic and the salt solution is hypertonic to the cells
of the carrot slices
For a neuron, the concentration of K+ is greater inside the cell than outside of the cell.
Knowing that humans get K+ from their diet, how might K+ get into the cytoplasm of a
neuron from its extracellular space? (Select all that apply) - ANSWER Active
transport
1
, Choice 4 of 4:Pinocytosis
If you stimulated cells with a drug that increases the activity of myosin and exposed the cells
to SARS CoV-2, what would you expect to occur? Assume the cells express physiologically
normal levels of ACE-2 and actin. - ANSWER Increased entry of SARS CoV-2 into the
cell
For a neutrophil to phagocytose a bacterium, it must:
I. have functional actin filaments
II. have functional myosin filaments
III. express IL-8 - ANSWER I and II only
Inhibiting the activity of MEKK1, a MAPKKK, will result in inactive p38 MAPK. -
ANSWER True
SARS CoV-2 has a single-stranded RNA genome. A toll-like receptor that would recognize the
SARS CoV-2 genome, and thus activate an inflammatory response, would be found in the: -
ANSWER Within an endosome
Which of the following events is shared by both a water-soluble and lipid (or hormone)
steroid? - ANSWER Activation of transcription factors
Which of the following is NOT associated with signaling via a G-coupled protein receptor
(GPCR)? - ANSWER Entry of the signaling ligand into the cytoplasm
You scraped your arm while mountain biking, causing a bacterial infection of your skin. How
many of the following symptoms might be considered a hallmark of the inflammation that
you're experiencing?
Separation of layers of skin near the wound, causing blisters.
Swelling of the skin near the wound site.
2
that is translated? - ANSWER MET
You recently discovered a novel organic compound that prevents the function of ribosomes
(all types). This could be used to treat which type of infection in plants? -
ANSWER Neither bacterial nor viral infections
A mutation arose in the Kozak consensus sequence of a gene (all other aspects of the gene
are unaffected). As a result, you would expect abnormal: - ANSWER Translation of
the gene product
The promoter sequence of a gene would be found in: - ANSWER DNA only
Which of the following molecules can enter a cell via facilitated diffusion (assume any
necessary membrane proteins are present and that the concentration is higher outside the
cell than inside the cell)? - ANSWER Na+ and glucose
Carrot slices placed in a 2 g/L salt solution for several hours become flaccid (limp). Carrot
slices placed in fresh water for several hours become turgid (stiff). Why? -
ANSWER The fresh water is hypotonic and the salt solution is hypertonic to the cells
of the carrot slices
For a neuron, the concentration of K+ is greater inside the cell than outside of the cell.
Knowing that humans get K+ from their diet, how might K+ get into the cytoplasm of a
neuron from its extracellular space? (Select all that apply) - ANSWER Active
transport
1
, Choice 4 of 4:Pinocytosis
If you stimulated cells with a drug that increases the activity of myosin and exposed the cells
to SARS CoV-2, what would you expect to occur? Assume the cells express physiologically
normal levels of ACE-2 and actin. - ANSWER Increased entry of SARS CoV-2 into the
cell
For a neutrophil to phagocytose a bacterium, it must:
I. have functional actin filaments
II. have functional myosin filaments
III. express IL-8 - ANSWER I and II only
Inhibiting the activity of MEKK1, a MAPKKK, will result in inactive p38 MAPK. -
ANSWER True
SARS CoV-2 has a single-stranded RNA genome. A toll-like receptor that would recognize the
SARS CoV-2 genome, and thus activate an inflammatory response, would be found in the: -
ANSWER Within an endosome
Which of the following events is shared by both a water-soluble and lipid (or hormone)
steroid? - ANSWER Activation of transcription factors
Which of the following is NOT associated with signaling via a G-coupled protein receptor
(GPCR)? - ANSWER Entry of the signaling ligand into the cytoplasm
You scraped your arm while mountain biking, causing a bacterial infection of your skin. How
many of the following symptoms might be considered a hallmark of the inflammation that
you're experiencing?
Separation of layers of skin near the wound, causing blisters.
Swelling of the skin near the wound site.
2
