The diagram compares two types of T cells: FAS-controlled T cells and EBV-activated CD8 T cells. Each cell type is represented as a circle with various labeled components inside. For the FAS-controlled T cell, the diagram shows CD38 HLA-DR, mTOR, glycolysis, ATP, ROS, MMP, and T-BET. The unknown antigen is depicted on the cell surface. IL10 is shown outside the cell, indicating secretion. For the EBV-activated CD8 T cell, the diagram shows CD38 HLA-DR, mTOR, glycolysis, ATP, T-BET, IFNy, and perforin. The viral antigen is depicted on the cell surface. The diagram indicates increased proliferation for both cell types. The relationships between these components illustrate the metabolic processes and differentiation states of the T cells.