Bs161 exam 3 UPDATED ACTUAL Questions and CORRECT Answers
Which major checkpoint delays G2 checkpoint
the cell cycle when DNA
replication is incomplete?
1) G1 checkpoint
2) M checkpoint
3) G2 checkpoint G1, G2, and M
checkpoints
4) G2 checkpoint
CDKs are important in the Adding phosphate groups to proteins
regulation of the cell cycle. They
carry out their function by:
1) degrading cyclin proteins
2) adding phosphate groups to
proteins
3) preventing the progression of
one stage of the cell cycle to
the next
4) removing phosphate
Which of the following is TRUE if The cell would proceed through the cell cycle even in the
a cell has a mutation in the p53 presence of DNA damage
gene such that the p53 protein
is no longer able to be
phosphorylated?
1) The kinase activity in the
nucleus would decrease
2) the cell would arrest
3) the cell would proceed
through the cell cycle even in
the presence of DNA damage
4) the amount of cytoplasmic
p53 would increase
, an enzyme that catalyzes the transfer of a phosphate group from
Kinase
ATP to a specified molecule.
CDK cyclin dependent kinase
The synthesis phase of the cell cycle; the portion of interphase
S phase
during which DNA is replicated.
chromosomes have attached to spindle apparatus, chromosomes
M phase checkpoint
have properly segregated and MPF is absent
Cytokinesis division of the cytoplasm to form two separate daughter cells
G2 checkpoint The cell checks to make sure the DNA is copied correctly
G1 checkpoint checks for cell size, nutrients, growth factors and DNA damage
cell cycle series of events that cells go through as they grow and divide
A GTP-binding protein that relays signals from a plasma
G protein membrane signal receptor, known as a G protein-coupled
receptor, to other signal transduction proteins inside the cell.
Special structures that allow living organisms to sense the
Receptors
conditions of their internal or external environment.
How do new cyclin proteins They are made through protein synthesis.
appear in the cytoplasm?
Which of the following is Cyclin-CDK complex
capable of phosphorylating key
proteins involved in the
regulation of the cell cycle?
1) CDK
2) p53 Protein
3) cyclin-CDK complex
4) cyclin
5) phosphatase
Phosphatase removes a phosphate group from a molecule
phosphorylate other proteins to coordinate cell cycle
Cyclin-CDK complexes progression; must be activated and inactivated at appropriate
times for cell cycle to progress
one of a family of closely related proteins that regulate the cell
Cyclin
cycle in eukaryotic cells
p53 protein initiates transcription
Cell division is regulated by? all of the above
1) growth factor signals
2) signals that indicate the DNA
has been replicated
3) signals about the status of the
cell
4) all of the above
5) signals that indicate that the
cell has reached a sufficient size
Replication of DNA occurs in S phase
what step of the cell cycle?
Which major checkpoint delays G2 checkpoint
the cell cycle when DNA
replication is incomplete?
1) G1 checkpoint
2) M checkpoint
3) G2 checkpoint G1, G2, and M
checkpoints
4) G2 checkpoint
CDKs are important in the Adding phosphate groups to proteins
regulation of the cell cycle. They
carry out their function by:
1) degrading cyclin proteins
2) adding phosphate groups to
proteins
3) preventing the progression of
one stage of the cell cycle to
the next
4) removing phosphate
Which of the following is TRUE if The cell would proceed through the cell cycle even in the
a cell has a mutation in the p53 presence of DNA damage
gene such that the p53 protein
is no longer able to be
phosphorylated?
1) The kinase activity in the
nucleus would decrease
2) the cell would arrest
3) the cell would proceed
through the cell cycle even in
the presence of DNA damage
4) the amount of cytoplasmic
p53 would increase
, an enzyme that catalyzes the transfer of a phosphate group from
Kinase
ATP to a specified molecule.
CDK cyclin dependent kinase
The synthesis phase of the cell cycle; the portion of interphase
S phase
during which DNA is replicated.
chromosomes have attached to spindle apparatus, chromosomes
M phase checkpoint
have properly segregated and MPF is absent
Cytokinesis division of the cytoplasm to form two separate daughter cells
G2 checkpoint The cell checks to make sure the DNA is copied correctly
G1 checkpoint checks for cell size, nutrients, growth factors and DNA damage
cell cycle series of events that cells go through as they grow and divide
A GTP-binding protein that relays signals from a plasma
G protein membrane signal receptor, known as a G protein-coupled
receptor, to other signal transduction proteins inside the cell.
Special structures that allow living organisms to sense the
Receptors
conditions of their internal or external environment.
How do new cyclin proteins They are made through protein synthesis.
appear in the cytoplasm?
Which of the following is Cyclin-CDK complex
capable of phosphorylating key
proteins involved in the
regulation of the cell cycle?
1) CDK
2) p53 Protein
3) cyclin-CDK complex
4) cyclin
5) phosphatase
Phosphatase removes a phosphate group from a molecule
phosphorylate other proteins to coordinate cell cycle
Cyclin-CDK complexes progression; must be activated and inactivated at appropriate
times for cell cycle to progress
one of a family of closely related proteins that regulate the cell
Cyclin
cycle in eukaryotic cells
p53 protein initiates transcription
Cell division is regulated by? all of the above
1) growth factor signals
2) signals that indicate the DNA
has been replicated
3) signals about the status of the
cell
4) all of the above
5) signals that indicate that the
cell has reached a sufficient size
Replication of DNA occurs in S phase
what step of the cell cycle?
