which product of cytotoxic T lynphocytes is most like the membrane attack complexes (MACs) producted by...
Which one of the following are incorrectly paired? A. interferons – virus-infected cells B. immunoglobulins – B cells C. class I MHC molecule – CD4 D. perforins – cytotoxic T cells E. perforins - natural killer cells an explanation would be appreciated! thanks!
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...
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...
Which of the following types of cells are most similar in function to cytotoxic T-cells?
In the case of a helper cell, it can differentiate into T cells which will activate cells T helper 1 T-cell activation begins when an antigen to a CD4 or CD8 T cell. delivers phagocytic CD4 In contrast, T-cell activation requires the action of cells in order to differentiate into memory CD8 cells and activated CD8 cells. perforins Activated CD8 cells will mount a direct attack on target cells through the action of which punch holes in membranes, and which...
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...
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 types of cells stimulates other immune cells to attack and destroy foreign agents? A. Cytotoxic T cells B. Natural killer cells C. Plasma cells D. Helper T cells
1. True or False: Scavenger and C-type lectin receptors bind pathogens and induce phagocytosis by macrophages. 2. Which of the following is a location of Toll-like receptor (TLR) expression in the cell? a. Plasma membrane b. Mitochondrial membrane c. Cytoplasm d. Nucleus 3. True or False: Between the four different inflammasome complexes, bacterial byproducts and DNA can be recognized to induce inflammation. 4. Pattern recognition receptors that detect viral infections have primarily ___________ expression. 1. Intracellular 2. Extracellular 3. Free...
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+...