2. Which of the following describes how a cell in
one part of the body can activate another type of
cell in a distant part of the body?
exa
(A) A second messenger from the first cell
binds to a signaling molecule in the
distant cell.
(B) A signaling molecule released by the first
cell binds to a receptor on the surface of
the distant cell.
(C) A ligand-receptor complex released from
the first cell binds to an enzyme on the
surface of the distant cell.
(D) A receptor from the first cell binds to a
second messenger in the distant cell.