Which of the following best describes the relationship between enzymes and substrates? a) Each enzyme can change the form of the substrates attached to it. b) Each enzyme is designed to work with substrates from all metabolic reactions. C) Each enzyme can form many products from a specific set of substrates. d) Each enzyme is designed to work with specific substrates for specific metabolic reactions. Please help me

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.