Serotonin, one of the hormones thought to be involved in depression, is a water-soluble molecule. Where on the target cell would you expect to find receptors for this hormone?

Question

Quizplus · Accepted Answer

Since serotonin is water-soluble, it cannot pass through the hydrophobic plasma membrane to bind to intracellular receptors in the cytoplasm or nucleus. Instead, the receptors for serotonin are located on the outside of the plasma membrane of the target cell.

Serotonin, One of the Hormones Thought to Be Involved in Depression