Homework Answers
Answer: C. B-cell
Comments: The antigen presenting cells (APCs): are immune cells that help in mediating the cellular immune response by engulfing, processing and presenting of antigen to lymphocytes for their activation and effector functions (cytokine production). The classical antigen presenting cells are dendritic cells (DC), macrophages and B cells. The B cells are mainly known for humoral immunity (production of antibodies) however, it also acts as a professional APC. The BCR present on B cell surface binds with extracellular antigen that leads to activation of B cells to express CD40 on its cell surface. The CD40 on B cells binds with CD40L (CD154; a co-stimulatory molecules) express on T cells. The binding of CD40/CD40L activate the T cells to produce effector response (secret effector cytokines especially; IL-2, IL-4 and IL-5).
Add Answer to:
An example of an antigen-presenting cell for a CD4+TH2 cell would be a(n): Select one: a....
Which antigen presenting cell is capable of presenting antigen and co-stimulation to a naive CD4 or...
Which antigen presenting cell is capable of presenting antigen and co-stimulation to a naive CD4 or CD8 T lymphocyte? A. B cell B. Macrophage C. Dendritic cell D. Macrophage or dendritic cell E. Macrophage, dendritic cell, or B cell
CD4 and CD8 are: Select one: O a Molecules present on the surface of T cells...
CD4 and CD8 are: Select one: O a Molecules present on the surface of T cells that enhance interaction with antigen presenting cells O b. Molecules present on T cells that provide co-stimulation for B cells @c. Molecules secreted by antigen-presenting cells d. Molecules present on the surface of natural killer (NK) cells e. Molecules on the surface of antigen-presenting cells that inhibit NK cell activation
B-cells are stimulated by _________ to produce antibodies. CD4+ cells Antigen-presenting cells only CD8+ cells Both...
B-cells are stimulated by _________ to produce antibodies. CD4+ cells Antigen-presenting cells only CD8+ cells Both CD4+ and CD8+ cells
please answer questions 20-27 Costcell and antigen presenting cell interaction is A MHC clase-It restricted CMHC...
please answer questions 20-27
Costcell and antigen presenting cell interaction is A MHC clase-It restricted CMHC class I restricted B MHC class-It restricted D. T-suppressor restricted 21. Which of the following are professional antigen presenting cells? A. Langerhans cells Chasophils B T-suppressors D. epithelial cells 22. T-cell dependent antigens can trigger a response from B-cells without the cooperation with macrophages or T-helper cells. A True B. False 23. Erythroblastosis fetalis develops in which of the following situations? A.fourth pregnancy Rh+...
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.
Upon encountering an appropriate MHC Class I on an infected cell: Select one: a. naive T1...
Upon encountering an appropriate MHC Class I on an infected cell: Select one: a. naive T1 cells secrete cytokines b. TH1 cells differentiate into Th2 cells O c. CD8 cytotoxic cells destroy the infected cell O d . CD4 T cells release IL-4 e. BCRs become cross linked and signaling occurs All of the following are characteristic of NK cells EXCEPT Select one: O a. they express Toll-like receptors O b. they are tolerant of healthy cells c. they express...
Human T-cell lymphotropic virus type I preferentially infects: A. B lymphocytes. B. CD4 T lymphocytes. C....
Human T-cell lymphotropic virus type I preferentially infects: A. B lymphocytes. B. CD4 T lymphocytes. C. CD8 T lymphocytes. D. macrophages.
answer all the questions answering one question is not helpful 1. A helper T cell is...
answer all the questions answering one question is not helpful 1. A helper T cell is capable of helping another cell because it expresses a protein on its surface that binds to a different protein on the surface of the cell being helped. What are these proteins (on the T cell, and on the cell being helped)? CD28, and B7 TNF, and TNFR Class I MHC, and TCR CD40L, and CD40 CTLA-4, and B7 2. Helper T cells are restricted...
ANSWER ALL THE QUESTIONS FULLY AND CORRECTLY!!! 1) A patient has inherited two defective genes for...
ANSWER ALL THE QUESTIONS FULLY AND CORRECTLY!!!
1) A patient has inherited two defective genes for TAP2 (remember the case study from before) Which of the following are true? (circle all that apply): - The patient will have a scarcity of CD4+ T helper cells -MHC class I molecules will not be expressed to any extent on the patient's cells -MHC class II molecules will be reduced in expression - The patient will have an impaired ability to fight viral...
Would you want a CD8+ TC cell to respond to an antigen being presented via MHCII...
Would you want a CD8+ TC cell to respond to an antigen being presented via MHCII on a B cell? Explain. Simple answer!
CD4 and CD8 are: Select one: O a Molecules present on the surface of T cells that enhance interaction with antigen presenting cells O b. Molecules present on T cells that provide co-stimulation for B cells @c. Molecules secreted by antigen-presenting cells d. Molecules present on the surface of natural killer (NK) cells e. Molecules on the surface of antigen-presenting cells that inhibit NK cell activation
please answer questions 20-27
Costcell and antigen presenting cell interaction is A MHC clase-It restricted CMHC class I restricted B MHC class-It restricted D. T-suppressor restricted 21. Which of the following are professional antigen presenting cells? A. Langerhans cells Chasophils B T-suppressors D. epithelial cells 22. T-cell dependent antigens can trigger a response from B-cells without the cooperation with macrophages or T-helper cells. A True B. False 23. Erythroblastosis fetalis develops in which of the following situations? A.fourth pregnancy Rh+...
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.
Upon encountering an appropriate MHC Class I on an infected cell: Select one: a. naive T1 cells secrete cytokines b. TH1 cells differentiate into Th2 cells O c. CD8 cytotoxic cells destroy the infected cell O d . CD4 T cells release IL-4 e. BCRs become cross linked and signaling occurs All of the following are characteristic of NK cells EXCEPT Select one: O a. they express Toll-like receptors O b. they are tolerant of healthy cells c. they express...
ANSWER ALL THE QUESTIONS FULLY AND CORRECTLY!!!
1) A patient has inherited two defective genes for TAP2 (remember the case study from before) Which of the following are true? (circle all that apply): - The patient will have a scarcity of CD4+ T helper cells -MHC class I molecules will not be expressed to any extent on the patient's cells -MHC class II molecules will be reduced in expression - The patient will have an impaired ability to fight viral...
Most questions answered within 3 hours.
-
Rice Products in Bangladesh
Business behavior is derived in large part from the basic cultural
environment...
asked 57 minutes ago -
The following base sequence is found for a mRNA fragment from
wild-type E. coli: 5'- UAUCAGUAGAUAAUGUAACC-3'...
asked 1 hour ago -
For this exercise, round all regression parameters to three
decimal places.
One of the two tables...
asked 1 hour ago -
What is the 5% level of significance for mean = 3.60, standard
deviation = 0.94, and...
asked 1 hour ago -
Prior to beginning work on this discussion, please read the
article by Hayley Peterson, 15 Companies...
asked 2 hours ago -
Which pair of aqueous solutions, when mixed, will form a
precipitate?
A) NaNO3 and AgC2H3O2
B)...
asked 2 hours ago -
1-Write an algorithm to get two numbers from the user (as
inputs) and calculate the sum...
asked 5 hours ago -
Define white-collar crime. What is the difference between
offender and offense-based definitions of white-collar crime? What...
asked 6 hours ago -
Consider a reaction which is 1st order with respect to A and 1st
order with respect...
asked 6 hours ago -
c++
The length of the hypotenuse of a right-angled triangle is the
square root of the...
asked 6 hours ago -
When a metal rod is heated, not only its resistance but also its
length and cross‐sectional...
asked 6 hours ago -
write a c++ program that computes the L^1 - Norm of a given
vector (L^1 norm...
asked 6 hours ago