Choose the correct statement about T cells and their cluster of differentiation
ID: 259281 • Letter: C
Question
Choose the correct statement about T cells and their cluster of differentiation receptors.
A. CD3 is a heterodimeric receptor found on all T cells and their cluster of differentiation receptors.
B. T cytotoxic cells carry the cluster of determination receptor CD4, which allows them to receive signals for the coordination of the immune response and the activation of B cells
C. CD8 T cells do not directly kill target cells, instead they proliferate, thereby increasing the number of CD8 cells that can react to the antigen
D. T helper cells carry the cluster of determination receptor CD8, which allows them to receive signals for the destruction of targeted cells
Explanation / Answer
CD3 is a pan T cell receptor i.e all T cells bear CD3 receptor. Therefore the statement "CD3 is a heterodimeric receptor found on all T cells and their cluster of differentiation receptors" is correct.
On the other hand T cytotoxic cells carry the cluster of determination receptor CD8 not CD4, CD8 can directly kill target cells and T helper cells carry the cluster of determination receptor CD4 not CD8
Therefore option B, C and D are false.