ndocrine

Question 1

Cell communication

Answer 1

• Cell communicate using chemical signals that bind to receptors.
• Signaling involves receptor activation, signal transduction, response, and termination.
• The response of a cell to a signaling molecule depends on the cell type.

Question 1

Cell signaling

Answer 1

• eceptors for polar signaling molecules are located on the cell surface.
• Receptors for nonpolar signaling molecules are located in the interior of the cell.
• Cell-surface receptors act like molecular switches.

Question 2

Signaling cell l1- the source of a signaling molecule