Biology 151 is a 3-unit course on immunology taught in the second semester of 2010-2011. Student grades are based 70% on two lecture exams and quizzes and journal reports. Students can be exempted from the final exam if they have a pre-final average of 75% or higher and passing grades in both the lecture and laboratory components. Students who miss an exam for a valid reason will take the final exam, which will substitute for the missed exam score. The course covers topics such as the immune system cells and organs, antigens, antibodies, immunoglobulin genes, antigen processing and presentation, T-cells and B-cells, cytokines, the complement system, cell-mediated effector response, and immunity