a) Which cytoskeletal motor protein is required for
degranulation of cytotoxic granules during CD8 T cell-mediated...
a) Which cytoskeletal motor protein is required for
degranulation of cytotoxic granules during CD8 T cell-mediated
killing of a cell infected by a virus?
b) Briefly outline the steps of the motor cycle from above
Which of the following is a characteristic of a cytotoxic T
cell?
A)
They originate in bone marrow.
B)
They have antibodies on their
surfaces.
C)
They are responsible for the memory
response.
D)
They recognize antigens associated with
MHC I.
Which of the following cells can be classified as a professional
antigen presenting cell?
A)
basophils
B)
red blood cells
C)
natural killer cells
D)
dendritic cells
Which of the following destroys virus-infected cells?
A)
cytotoxic T cells
B)...
1) Describe how CD8 T-cells contribute to cell-mediated
immunity. [Be sure to provide a short general overview first, and
then provide specific ways in which T cells destroy their target
cells].
Which of the following cell type(s) produces and secretes
antibodies?
A.
Cytotoxic T-lymphocytes
B.
B-lymphocytes
C.
Helper T-lymphocytes
D.
Plasma Cells
E.
Neutrophils
F.
Both A and C
G.
Both B and D
H.
B, D, and E
1 points
QUESTION 2
Which of the following cell types secrete interleukins to
coordinate the immune system?
A.
Cytotoxic T-lymphocytes
B.
Memory B-lymphocytes
C.
Basophils
D.
Eosinophils
E.
Helper T-lymphocytes
1 points
QUESTION 3
Which of the following cell types...
During the _____ phase of cell reproduction, protein synthesis
occurs during the _____ phase of cell reproduction, rapid protein
synthesis occurs as the cell grows to double in size.
a. G1 :G2
b. S : G2
c. G1 : S
d. G2 : S
Cell Biology Short Answer Question: Review the
steps for ligand-induced activation of effector protein mediated by
trimeric G proteins. Suppose you have isolated a mutant Gα that has
increased GTPase activity, what effect would this mutation have on
the G protein and the effector protein?
Compare and contrast the immune response of NK cells and
cytotoxic T cells during primary infection and subsequent
infections. Include a comment on the magnitude, kinetics and
mechanism of activation observed
a Which motor protein is likely to be
moving the organelles along the microfilaments and which direction
along the microfilaments will these move?
b After streaming stopped when cells
were prodded in tap water why do you think the streaming resumed
after ~1 minute?
c When cells are prodded,
Ca2+ enters the cell by which process(es): simple
diffusion, facilitated diffusion, active transport, secondary
active transport, symport and/or antiport?
Which of the following processes: T cell development, T cell
activation, B cell development, B cell activation would be
disrupted by a deficiency in the indicated protein. Your answer
should include all processes that would be disrupted. If
none of these processes is disrupted, state NONE.
Part 2: Justify your answers (a-d) by describing the cell
type(s) that express the molecule and the function of the molecule
in the processes you indicated would be disrupted.
a. CD3 zeta chain
b. TLR4...
Which of the following are antigen-presenting cells?
Macrophages
B cells
Cytotoxic T cells
All of these choices are correct answers.
Only the first and second choices are correct answers.