SBB Exam Questions with 100% Correct Answers

Chemicals that send signals between cells are Correct Answer Cytokines Antibodies are made by what cells? Correct Answer Plasma cells Where do B cells mature? Correct Answer Bone Marrow Where do T cells mature? Correct Answer Thymus Coating of a cell with antibodies or complement is called? Correct Answer Opsonization CD4 + cells are? Correct Answer T helper cells The specific chemical group that provokes an antibody response Correct Answer Epitope Blood groups are made of two main kinds of chemicals Correct Answer Proteins, carbohydrates What is the function of the FC piece of an immunoglobulin? Correct Answer Monocyte binding What is the only Ig that crosses the placenta? Correct Answer IgG What does 2-ME OR DTT do to IgM antibodies? Correct Answer Destroys disulfide bonds Which is the secretory Ig? Correct Answer IgA Which Ig is responsible for allergic reaction's? Correct Answer IgE Which IgG subclass does not bind complement? Correct Answer IgG4 Which IgG sub classes are most clinically significant? Correct Answer IgG 1 & 3 What is isotype switching? Correct Answer Example IgM switches to IgG What is the end point of complement activation? Correct Answer Hole in cell At what stage of complement cascade is it amplified? Correct Answer C3 activation What two ions are needed for complement activity? Correct Answer Ca++ and Mg++