Proteins that bind to antigens and thus prevent their attack on target cells are called _____.Multiple choice question.enzymesbuffersantibodiesneurotransmitters

______ are proteins that bind to foreign proteins which invade the body.Multiple choice question.BuffersHormonesEnzymesAntibodies

Membrane proteins that bind to a signal on the outside and trigger a response on the inside of the cell are called _____ proteins.Multiple choice question.junctiontransportreceptor

What is an antigen?Multiple choice question.any molecule that triggers an immune responsea molecule produced during an immune response

Amines, peptides, and proteins are examples of ______ hormones that bind to receptors in the target cell membranes.Multiple choice question.nonsteroidsteroid

B lymphocytes that have been exposed to an antigen develop into cells that produce antibodies called _____ cells.Group of answer choicesplasmamemorybursaKupffer