1 Some virulent bacteria produce proteins that either disrupt host cell membranes or stimulate their own endocytosis or macro-pinocytosis into host cells. 2  These virulence factors allow the bacteria to enter host cells and facilitate entry into the body across epithelial tissue layers at the body surface.
Definition of revoke for English Language Learners : to officially cancel the power or effect of (something, such as a law, license, agreement, etc.) : to make (something) not valid REVOKE Defined for Kids
Revoke means to undo or call back and terminate means to finish or end. The implication is that the person who revokes something was its creator in the first place. To have power to terminate something isn't necessarily linked to being the author of the thing. A law can give a court power to terminate contracts that is infringe certain rules, for example.