Biology 2nd Edition by Robert Brooker, Eric Widmaier ,Linda Graham ,Peter Stiling

Exercise 3

During viral infection, attachment is usually specific to a particular cell type because
A) the virus is attracted to the appropriate host cells by proteins secreted into the extracellular fluid.
B) the virus recognizes and binds to specific molecules in the cytoplasm of the host cell.
C) the virus recognizes and binds to specific molecules on the surface of the host cell.
D) the host cell produces channel proteins that provide passageways for viruses to enter the cytoplasm.
E) the virus releases specific proteins that make holes in the membrane large enough for the virus to enter.