B-cells are stimulated by _________ to produce antibodies.
CD4+ cells
Antigen-presenting cells only
CD8+ cells
Both CD4+ and CD8+ cells
1st one is correct answer because cytokin released from t helper cell stimulate B cell to produce antibodies.CD4+ cell are T helper cell
B-cells are stimulated by _________ to produce antibodies. CD4+ cells Antigen-presenting cells only CD8+ cells Both...
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
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
Class II MHC molecules are used to present ________ antigen to ________ cells. a. intracellular; CD8 b. intracellular; CD4 c. extracellular; CD8 d. extracellular; CD4
An example of an antigen-presenting cell for a CD4+TH2 cell would be a(n): Select one: a. astrocyte 0 b. Neutrophil 0 c. B-cell 0 d. epithelial cell e. CD8+ T cell
24) 100000 10000 CD4 PE اما مقيماملی 0 100 100000 1000 10000 CD8 FITC above flow cytometry profile was obtained from staining thymocytes with anti-CD4 and anti-CD8 antibodies. Answer the following questions based on your combined understanding of how to read flow cytometry profiles together with an understanding of the events occurring in T cell development and selection. A) in which quadrant are the developing T cells undergoing VDJ recombination? B) in which quadrant is both positive selection and CD4...
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.
what happens if theres more Cd8 cells than Cd4 cells found in sheeps blood? does that mean the sheep is sick?
Dendritic cells activate innate system presenting an antigen. To which types of cells this antigen is presented?
37. What is NOT correct about phagocytic, professional antigen-presenting cells? a. they produce a respiratory burst as soon as the phagosome is formed around the foreign particle b. They create toxic reactive oxygen species to immediately kill microorganisms c. They bind a foreign peptide antigen in the cleft between two chains of the MHC Class II d. e. molecule Have receptors for immunoglobulins and C3b all are correct
Classify the phrases as describing monoclonal antibodies, polyclonal antibodies, or both. Monoclonal antibodies Polyclonal antibodies Both monoclonal and polyclonal antibodies Answer Bank produced by different B cells responding to a specific antigen respond to the same antigen respond to different epitopes within the same anitgen bind the same epitope synthesized by a population of identical cells (a clone)