Put the following steps in the process of B-cell activation in cause-and-effect order: Long-lived memory cells...
Put the following steps in the process of B-cell activation in cause-and-effect order:
Long-lived memory cells remain in the body to respond rapidly if the same antigen appears again
The plasma cells produce and secrete large numbers of antibodies
A helper T-cell with a complementary T-cell receptor binds the presented antigen
The antigen is processed and presented by a class 2 MHC protein
The T-cell releases cytokines that activate the B-cell An antigen binds to the B-cell receptors in the cell membrane
The B-cell replicates (clonal expansion) rapidly, producing numerous plasma cells
Homework Answers
1.A helper T-cell with a complementary T-cell receptor binds the presented antigen
2.The antigen is processed and presented by a class 2 MHC protein
3.The T-cell releases cytokines that activate the B-cell An antigen binds to the B-cell receptors in the cell membrane
4.The B-cell replicates (clonal expansion) rapidly, producing numerous plasma cells
5.The plasma cells produce and secrete large numbers of antibodies6.Long-lived memory cells remain in the body to respond rapidly if the same antigen appears again
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Put the following steps in the process of B-cell activation in
cause-and-effect order:
Long-lived memory cells...
How does activation by T-independent antigens differ from this figure? Extracellular antigens B cell receptors Antigen...
How does activation by T-independent antigens differ
from this figure?
Extracellular antigens B cell receptors Antigen fragments MHC class II with antigen displayed on surface **Cytokines Plasma cell Antibodies T cell B cell B cell 1 APC receptors 2 Antigen is 3 Antigen fragments are T helper cell recognize and phagocytized and displayed on the B cell secretes cytokines, attach to antigen. digested (see surface, attracting a activating a B cell. Figure 17.12). matching T helper cell. Figure 17.5 Activation...
antibodies A specific B cell is activated when an) from a pathogen binds to one of...
antibodies A specific B cell is activated when an) from a pathogen binds to one of the _ on its surface. Activation also requires from helper T cells. 1 antigen antigen This activated cell then begins dividing into memory B cells, which will participate in the secondary immune response, and cells that will act as protein factories in this immune response. plasma During the primary immune response, these cells secrete cytokines During the secondary immune response, the rapidly, giving rise...
Match each type of immune system cell to its function or description. (Use each description once)....
Match each type of immune system cell to its function or description. (Use each description once). Helper T-cell Detects pathogens and releases chemokines as part of the inflammatory response Participates in activation of B-cells if it has receptors for the same antigens Has receptors that are specific to particular antigen structures and releases antibodies as part of the humoral response Releases histamine as part of the inflammatory response Secretes proteins that cause infected cells to undergo apoptosis White blood cell...
29. T-cell independent antigens can a. stimulate B cells to multiply and produce antibodies b. induce...
29. T-cell independent antigens can a. stimulate B cells to multiply and produce antibodies b. induce Te cells to function c. restrict antibody formation activate macrophages activate Th cells 30. Mutation of DNA that produces an altered ribosome is an example of what type of bacterial resistance mechanism? a. alteration of a metabolic pathway b. alteration of an enzyme c. development of enzymes d. alteration of target & d 31. Which one of the following is not an attribute of...
31. Which part of this T cell receptor is produced only AFTER the T cell has...
31. Which part of this T cell receptor is produced only AFTER the T cell has bound an antigen? A. The part labeled "A" B. The parts labeled "B" C. The entire T cell receptor D. None of it. It is all produced BEFORE antigen binding. E. T cells don't bind antigens; only antibodies do that. 37. How do Treg cells differ from Th cells? A. When Treg cells bind B7, they engulf and destroy it. B. Treg cells secrete...
Which of the following activates cytotoxic T cells as part of the acquired immune response against...
Which of the following activates cytotoxic T cells as part of the acquired immune response against virus infected cells? -Virus infected cell -Virus infected cell that presents a viral antigen on its surface -A virale infected cell that presents both a viral antigen and a MHC class 1 protein -A virale infected cell that presents both a viral antigen and a MHC class II protein Which of the following is a role of macrophages in a secondary lymph organ in...
1 pts T cytotoxic cell activation involves: O antigen binding to antibody on B cells O...
1 pts T cytotoxic cell activation involves: O antigen binding to antibody on B cells O T cell receptor (TCR) binding to antigen displayed in MHC-II O T cell receptor (TCR) binding to antigen displayed in MHC- natural killer cells 1 pts Question 13 Question 11 1 pts Which of the following is found on the surface of T cells! O All of these O MHC-II O CD and TCR TCR O CD 1 pts Question 12 Question 10 1...
Question 2 1 pts on of In which of the following ways do B cells and...
Question 2 1 pts on of In which of the following ways do B cells and T cells differ? effector B cells secrete their receptors, but effector T cells do not B cells, but not T cells, generate their receptors through a process that cuts, splices, and modifies receptor genes B cell receptors are collectively able to bind a huge variety of potential antigens, but T cell receptor bind a more limited variety of antigens the antigen receptor in T...
B cell activation requires (select ALL that apply): O T cytotoxic cells O Tcell receptor (TCR)...
B cell activation requires (select ALL that apply): O T cytotoxic cells O Tcell receptor (TCR) binding to antigen displayed in MHC-|| O antigen binding to antibody on B cell surface T cell receptor (TCR) binding to antigen displayed in MHC-I Question 3 1 pts Which statement(s) about C proteins in the complement system is true (select ALL that apply): Cproteins are always active as they circulate through the body All of the C proteins are equally important for all...
ANSWER ALL QUESTIONS FULLY AND CORRECTLY 5-1 T cells recognize antigen when the antigen a. forms...
ANSWER ALL QUESTIONS FULLY AND CORRECTLY
5-1 T cells recognize antigen when the antigen a. forms a complex with membrane-bound MHC molecules on another host-derived cell b. is internalized by T cells via phagocytosis and subsequently binds to T-cell receptors in the endoplasmic reticulum c. is presented on the surface of a B cell on membrane-bound immunoglobulins d. forms a complex with membrane-bound MHC molecules on the T cell e. bears epitopes derived from proteins, carbohydrates, and lipids. 5-2 a....
How does activation by T-independent antigens differ
from this figure?
Extracellular antigens B cell receptors Antigen fragments MHC class II with antigen displayed on surface **Cytokines Plasma cell Antibodies T cell B cell B cell 1 APC receptors 2 Antigen is 3 Antigen fragments are T helper cell recognize and phagocytized and displayed on the B cell secretes cytokines, attach to antigen. digested (see surface, attracting a activating a B cell. Figure 17.12). matching T helper cell. Figure 17.5 Activation...
antibodies A specific B cell is activated when an) from a pathogen binds to one of the _ on its surface. Activation also requires from helper T cells. 1 antigen antigen This activated cell then begins dividing into memory B cells, which will participate in the secondary immune response, and cells that will act as protein factories in this immune response. plasma During the primary immune response, these cells secrete cytokines During the secondary immune response, the rapidly, giving rise...
29. T-cell independent antigens can a. stimulate B cells to multiply and produce antibodies b. induce Te cells to function c. restrict antibody formation activate macrophages activate Th cells 30. Mutation of DNA that produces an altered ribosome is an example of what type of bacterial resistance mechanism? a. alteration of a metabolic pathway b. alteration of an enzyme c. development of enzymes d. alteration of target & d 31. Which one of the following is not an attribute of...
31. Which part of this T cell receptor is produced only AFTER the T cell has bound an antigen? A. The part labeled "A" B. The parts labeled "B" C. The entire T cell receptor D. None of it. It is all produced BEFORE antigen binding. E. T cells don't bind antigens; only antibodies do that. 37. How do Treg cells differ from Th cells? A. When Treg cells bind B7, they engulf and destroy it. B. Treg cells secrete...
1 pts T cytotoxic cell activation involves: O antigen binding to antibody on B cells O T cell receptor (TCR) binding to antigen displayed in MHC-II O T cell receptor (TCR) binding to antigen displayed in MHC- natural killer cells 1 pts Question 13 Question 11 1 pts Which of the following is found on the surface of T cells! O All of these O MHC-II O CD and TCR TCR O CD 1 pts Question 12 Question 10 1...
Question 2 1 pts on of In which of the following ways do B cells and T cells differ? effector B cells secrete their receptors, but effector T cells do not B cells, but not T cells, generate their receptors through a process that cuts, splices, and modifies receptor genes B cell receptors are collectively able to bind a huge variety of potential antigens, but T cell receptor bind a more limited variety of antigens the antigen receptor in T...
B cell activation requires (select ALL that apply): O T cytotoxic cells O Tcell receptor (TCR) binding to antigen displayed in MHC-|| O antigen binding to antibody on B cell surface T cell receptor (TCR) binding to antigen displayed in MHC-I Question 3 1 pts Which statement(s) about C proteins in the complement system is true (select ALL that apply): Cproteins are always active as they circulate through the body All of the C proteins are equally important for all...
ANSWER ALL QUESTIONS FULLY AND CORRECTLY
5-1 T cells recognize antigen when the antigen a. forms a complex with membrane-bound MHC molecules on another host-derived cell b. is internalized by T cells via phagocytosis and subsequently binds to T-cell receptors in the endoplasmic reticulum c. is presented on the surface of a B cell on membrane-bound immunoglobulins d. forms a complex with membrane-bound MHC molecules on the T cell e. bears epitopes derived from proteins, carbohydrates, and lipids. 5-2 a....
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