This program examines types of signaling molecules, such as animal hormones, cytokines, neurotransmitters, and pheromones. It follows the steps of transduction pathways, from receptor binding to sequence of reactions to initiation of cellular response.

Originally released by Rees Films, 2015. Streaming video file encoded with permission for digital streaming by Infobase on May 24, 2018.

Cell Communication (1:26); --Hormones (1:41); -- Lipid Soluble Hormones (1:05); -- Water Soluble Hormones (3:11); -- Lipid Soluble vs. Water Soluble Review (2:37); -- Cytokines (2:02); -- Neurotransmitters (3:39); -- Pheromones (2:13); -- Credits: How Cells Communicate - Signaling Molecules and Transduction Pathways: Part 1 (0:00); .