Final answer:
The steroid receptor is not a cell surface-type receptor.
Step-by-step explanation:
The receptor that is not a cell surface-type receptor is the steroid receptor.
Cell-surface receptors are transmembrane proteins that span the plasma membrane and bind to external ligand molecules. They are involved in signal transduction and convert extracellular signals into intracellular signals. The three general categories of cell-surface receptors are ion channel-linked receptors, G-protein-linked receptors, and enzyme-linked receptors.
Steroid receptors, on the other hand, are internal receptors that are found in the cytoplasm or nucleus of the target cell. They bind to nonpolar ligands, such as steroids, that can diffuse across the cell membrane. Once the receptor-ligand complex forms, it moves to the nucleus and interacts with cellular DNA to change gene expression.