Homework Answers
FIRST QUESTION
Answer: C) T cell receptor(TCR) binding to antigen displayed in MHC-1
SECOND QUESTION(Question 11)
Answer: C) CD and TCR
THIRD QUESTION(Question 10)
Answer: C) Protects us against pathogens by using space and resources
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1 pts T cytotoxic cell activation involves: O antigen binding to antibody on B cells O...
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...
Which of the following is a step required for T cytotoxic cell activation - SELECT ALL...
Which of the following is a step required for T cytotoxic cell activation - SELECT ALL THAT APPLY Group of answer choices activation of the complement antigen binding to antibody CD4 binding to MHC-I T cell receptor (TCR) binding to antigen Which of the following is a direct consequence of T cytotoxic cell activation -SELECT ALL THAT APPLY Group of answer choices phagocytosis release of perforin and granzyme activation of the complement system release of alpha and beta interferon death...
Question 9 1 pts Natural killer cells target cells that lack MHC-Ion their surface. True O...
Question 9 1 pts Natural killer cells target cells that lack MHC-Ion their surface. True O False 1 pts Question 10 the difference between innate Question 12 1 pts Match the term with the method of complement activation classical pathway [Choose] alternate pathway [Choose] lectin pathway ✓ [Choose) BPD binding to a Sathogen antibody binding to an antigen T cytotoxic cells binding to MHC- lectin binding to RBD lectin binding to mannose 1 pts 13
3. Naïve T cells initially bind to antigen presenting cells by (T cell) binding to (APC)...
3. Naïve T cells initially bind to antigen presenting cells by (T cell) binding to (APC) a. CD4 b. TCR c. CD36 d. LFA i. LFA ii. ICAM-1 i. MHC Class II iv. IL2 IV.
3 pts Question 12 What type(s) of MHC molecules are present on antigen-presenting cells? Neither MHC...
3 pts Question 12 What type(s) of MHC molecules are present on antigen-presenting cells? Neither MHC I nor MHC II O Both MHC I and MHC II MHC I only OM ll only Question 13 3 pts A B-cell may be activated by: A cytotoxic T-cell A natural killer T-cell Another B-cell A TFH cell
please answer all 4 questions Question 11 3 pts A B-cell may be activated by: O...
please answer all 4 questions
Question 11 3 pts A B-cell may be activated by: O A TEH cell O Another B-cell O A cytotoxic T-cell O A natural killer T-cell Question 12 3 pts What happens to centrocytes that have high-affinity (tightly-binding) antigen receptors after somatic hypermutation? They receive survival signals from TFH cells o They cannot process antigen or present it to TFH cells o They undergo phagocytosis by dendritic cells in the "light zone" o They die...
Answer both of them with explaination please A B-cell may be activated by: Another B-cell O...
Answer both of them with explaination please
A B-cell may be activated by: Another B-cell O A cytotoxic T-cell A TFH cell A natural killer T-cell Question 7 3 Which costimulatory receptor on T cells promotes T cell activation following the binding of the T cell receptor to the MHC/peptide complex? CD8 B7 CD28 CD3 CD4
20. Defective function of which of the following proteins will result in failed antigen presentation to...
20. Defective function of which of the following proteins will result in failed antigen presentation to CD8 T cells? a. HLA-DM b. TAP c. Cathepsins d. CD1d 21.True or False: An antibody proteolytically cleaved by pepsin yields a fragment with higher avidity to the cognate antigen than an antibody cleaved by papain. a. True b. False 22.The structure recognized by an antibody (that is, the epitope) is the ________ and the regions of the antibody with significant sequence variation are...
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...
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...
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...
Question 9 1 pts Natural killer cells target cells that lack MHC-Ion their surface. True O False 1 pts Question 10 the difference between innate Question 12 1 pts Match the term with the method of complement activation classical pathway [Choose] alternate pathway [Choose] lectin pathway ✓ [Choose) BPD binding to a Sathogen antibody binding to an antigen T cytotoxic cells binding to MHC- lectin binding to RBD lectin binding to mannose 1 pts 13
3. Naïve T cells initially bind to antigen presenting cells by (T cell) binding to (APC) a. CD4 b. TCR c. CD36 d. LFA i. LFA ii. ICAM-1 i. MHC Class II iv. IL2 IV.
3 pts Question 12 What type(s) of MHC molecules are present on antigen-presenting cells? Neither MHC I nor MHC II O Both MHC I and MHC II MHC I only OM ll only Question 13 3 pts A B-cell may be activated by: A cytotoxic T-cell A natural killer T-cell Another B-cell A TFH cell
please answer all 4 questions
Question 11 3 pts A B-cell may be activated by: O A TEH cell O Another B-cell O A cytotoxic T-cell O A natural killer T-cell Question 12 3 pts What happens to centrocytes that have high-affinity (tightly-binding) antigen receptors after somatic hypermutation? They receive survival signals from TFH cells o They cannot process antigen or present it to TFH cells o They undergo phagocytosis by dendritic cells in the "light zone" o They die...
Answer both of them with explaination please
A B-cell may be activated by: Another B-cell O A cytotoxic T-cell A TFH cell A natural killer T-cell Question 7 3 Which costimulatory receptor on T cells promotes T cell activation following the binding of the T cell receptor to the MHC/peptide complex? CD8 B7 CD28 CD3 CD4
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...
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