You are a scientist studying a cell surface receptor. This

Last updated: 7/8/2022

You are a scientist studying a cell surface receptor. This receptor is expressed on the cells you are culturing in the lab, and when you add a hormone that binds to the cells, there is a cell response. However, when you add double the amount of hormone, the cell response remains the same. Why? The cell surface receptors are downregulated The cell surface receptors are saturated The hormone changed specificity to the receptor There is negative feedback on the receptor