5 Questions
What is a necessary step for hydrophilic extracellular signal molecules to induce a response in target cells?
They must bind to a cell-surface receptor
What is a common characteristic of all extracellular signal molecules?
They must bind to a cell-surface receptor
What is the relationship between a cell-surface receptor and the response it mediates?
A single receptor can mediate multiple responses
What is the response of a cell when a foreign substance binds to a receptor for a normal signal molecule?
A different response than the normal signal molecule
What is the function of a receptor in signal transduction?
To bind to signal molecules and transmit a signal
Test your knowledge of cell signaling and receptors. Learn about how extracellular signal molecules interact with cell-surface receptors to trigger cellular responses. Identify the correct statements about the binding of signal molecules to receptors and their effects on target cells.
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