T Cells Dependent Antigens

The video about T Cells Dependent Antigens is related to what we've already learned in our microbiology class.
Proteins need the help of T-helper cells to make B cells into antibody-producing cells and memory cells. As the protein enters the macrophage, it gets broken into peptide pieces; the Class II MHC then moves it out of the macrophage. The T-helper cell starts working as the T-cell receptor, which is on the top of the T-helper, senses the peptide compounds coming from the macrophage. After that, T-helper cell can stimulate B cells. Same as the macrophage, B cells are capable of ingesting protein antigens; an antibody, which rests on top of B cells, interacts with the antigen which causes the antigen to get swallowed by the B cell in which it gets broken into peptides and then carried out of the B cell on a Class II MHC. As the Class II MHC of the B cell, which carries the antigen, acts with the T-cell receptor, the T-helper brings cytokines into existence. The cytokines then cause B cells to produce plasma and memory cells. http://www.1lecture.com/Immunology/T%20Cells%20Dependent%20Antigens/index.html