Final answer:
Yes, a receptor in a cell signaling pathway can be sensitive to various different types of ligands. Receptors are specific and each ligand is recognized by a different receptor. Different ligands can bind to the same receptor, activating different signaling pathways and producing different responses in each cell.
Step-by-step explanation:
Yes, a receptor in a cell signaling pathway can be sensitive to various different types of ligands. Receptors are proteins that are embedded in the plasma membrane of a cell or found in the cell cytoplasm. These receptors are very specific, and each ligand is recognized by a different receptor. The binding of a ligand to its specific receptor initiates a signaling cascade inside the cell, leading to a specific cellular response. Different ligands can bind to the same receptor, activating different signaling pathways and producing different responses in each cell.