Homework Answers
Add Answer to:
A) T cells B) B cells 18. Helper T cells recognize. 19. These cells recognize cells...
Adaptive Immunity: Second Line of Defense—Cellular Defenses The T-cell receptors and CD4 and CD8 molecules interact...
Adaptive Immunity: Second Line of Defense—Cellular Defenses The T-cell receptors and CD4 and CD8 molecules interact with major histocompatibility complex (MHC) proteins. MHC proteins are found on most cells of the body. There are two variations, or classes, of MHC proteins. MHC class I is expressed on the surface of most cells of the body such as skin cells, liver cells, and others. Should a cell become infected with a virus, viral antigens are processed in the cells and expressed...
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...
Which of the following statements about how B and T cells recognize antigen are true? Correct...
Which of the following statements about how B and T cells recognize antigen are true? Correct any false statements. a. B cells only recognize antigen presented by class I or class II MHC molecules. b. Both cell types can recognize extra-cellular antigen free-floating in solution. c. Both cell types recognize extracellular matrix-bound antigens. d. T cells only recognize antigen presented by class I or class II MHC molecules.
Why do normal T cells, which recognize foreign peptide antigens bound to self MHC molecules, react...
Why do normal T cells, which recognize foreign peptide antigens bound to self MHC molecules, react strongly against the allogeneic MHC molecules of a graft?
Question 8 (2 points) Cytotoxic T cells target a) antigens and antibodies. b) bacterial cells and...
Question 8 (2 points) Cytotoxic T cells target a) antigens and antibodies. b) bacterial cells and fungal cells. c) B cells and macrophages. O d) cancer cells and virally infected cells. e) skin cells and blood cells. Question 9 (2 points) In an allograft, the tissue donor is a) a monozygotic twin. b) a dizygotic twin. c) a non-relative. d) the recipient. e) a member of a different species.
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...
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...
QUESTION 2 Match the CORRECT definition. All T cells have CD3 receptors, T helper cells also...
QUESTION 2 Match the CORRECT definition. All T cells have CD3 receptors, T helper cells also have CD4 receptors and T cytotoxic cells have CD8 receptors. Allograft - graft using tissue from non-identical twins. Alloantigens - molecules that are the same in members of the same species All nucleated cells have MHC class i markers while APC's have class Il markers Graft versus host disease - Host tissues rejecting and attacking graft Isograft - grating using tissues from identical twins....
Pls help me fill in the blanks sir/maam T cells mature in the thymus gland in...
Pls help me fill in the blanks sir/maam
T cells mature in the thymus gland in response to that is secreted by the thymus gland. When a T cell leaves the thymus it has a unique These T cells are not able to recognize foreign invaders called _without help. The invader has to be presented to the T cell in a specific way by an __ protein. Immunity mediated by T cells and Tc cells is referred to as _immunity....
Could you help with any of these ? and provide an explanation so I'll understand? thank...
Could you help with any of these ? and provide an explanation
so I'll understand? thank you so much
Circle all that apply 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...
Question 8 (2 points) Cytotoxic T cells target a) antigens and antibodies. b) bacterial cells and fungal cells. c) B cells and macrophages. O d) cancer cells and virally infected cells. e) skin cells and blood cells. Question 9 (2 points) In an allograft, the tissue donor is a) a monozygotic twin. b) a dizygotic twin. c) a non-relative. d) the recipient. e) a member of a different species.
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...
QUESTION 2 Match the CORRECT definition. All T cells have CD3 receptors, T helper cells also have CD4 receptors and T cytotoxic cells have CD8 receptors. Allograft - graft using tissue from non-identical twins. Alloantigens - molecules that are the same in members of the same species All nucleated cells have MHC class i markers while APC's have class Il markers Graft versus host disease - Host tissues rejecting and attacking graft Isograft - grating using tissues from identical twins....
Pls help me fill in the blanks sir/maam
T cells mature in the thymus gland in response to that is secreted by the thymus gland. When a T cell leaves the thymus it has a unique These T cells are not able to recognize foreign invaders called _without help. The invader has to be presented to the T cell in a specific way by an __ protein. Immunity mediated by T cells and Tc cells is referred to as _immunity....
Could you help with any of these ? and provide an explanation
so I'll understand? thank you so much
Circle all that apply 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...
Most questions answered within 3 hours.
-
1. (15%) Describe the difference between a pull (Kanban), push
and CONWIP production systems.
asked 56 seconds ago -
How does a linear regression allow you to better estimate
trends, costs, and other factors in...
asked 4 minutes ago -
QUESTION 5
The total area under the Z distribution curve is equal to:
a.
10
b....
asked 9 minutes ago -
Using Python
The variables x and y refer to numbers. Write a code segment
that prompts...
asked 24 minutes ago -
If
the coefficient of static friction between a box and the floor is
0.35 with what...
asked 26 minutes ago -
A die is designed to punch holes with a radius of 1.08 10-2 m in
a...
asked 31 minutes ago -
government can increase import through
a. export subsidies
b. tax breaks
c. increase import tax
d....
asked 31 minutes ago -
Draw the following in the proper skeletal structure or line
angle formula.
5,6,6-tribromo-3,8-dicyclopropyl-7-isopentyldodecane
asked 36 minutes ago -
Two blocks of masses m1 and m2 hang at the ends of a string that
passes...
asked 37 minutes ago -
Linear programming is an excellent technique yet is not applied
nearly enough in the “real world.”...
asked 46 minutes ago -
What three alkenes yield 3-methylpentane on catalytic
hydrogenation?
asked 46 minutes ago -
In JAVA Create a program with an array with the following
data:
50 12 31 76...
asked 48 minutes ago