Question

How do B cells depend on T cells?

Answer 1

B cells are capable of secreting antibodies in body fluid but they are instigated only by T cells to do so. There are T-helper cells which play the most important role in immune system.

Explanation:

When there is invasion of germs, T helpers help B cells to start proliferation and secretion of antibodies. Without T helpers humoral immunity is not activated.

T helpers also help cytotoxic T cells to become aggressive against germs.