bio 202 exam 2 with correct answers graded A+

bio 202 exam 2 with correct answers graded A+There are 5 classes of antibodies, which one can cross the placenta to provide immunological protection for the newborn? - correct answer IgG There are 5 classes of antibodies, which one is responsible for primary immune response? - correct answer IgM Martha was sick with covid and recovered but six months later a test showed that she had no circulating antibodies against the virus. Does that mean that she will get sick again - correct answer maybe There are 5 classes of antibodies, which one is responsible for mother-fetus mismatch? - correct answer IgG Cells infected with a virus are - correct answer Destroyed by cytotoxic T cells Helper T cells: - correct answer Activate immune responses, recognize mhc2 Cells that have parts of a pathogen's proteins on their surface are called - correct answer antigen-presenting cells Precipitation is a way that antibodies can neutralize - correct answer Toxins - antibodies bind to toxins Which cells secrete antibodies - correct answer Plasma cells A person is either allergic to many antigens or to none - correct answer False Any heightened or inappropriate immune response that may result in tissue damage is classified as - correct answer hypersensitivity