Question

Which is the correct order for these steps in cell signaling?

Please choose the correct answer from the following choices, and then select the submit answer button.


-receptor activation, response, signal transduction

-signal transduction, receptor activation, response

-response, signal transduction, termination

-receptor activation, signal transduction, response

Answer 1

The correct order of steps in cell signaling is receptor activation, signal transduction, and finally the response, which leads to various cellular changes.

Step-by-step explanation:

The correct order for the steps in cell signaling is receptor activation, followed by signal transduction, and finally the response. Initially, a ligand binds to a cell-surface receptor leading to receptor activation. This activation sets off a signaling pathway, often involving a cascade of enzymatic reactions, where molecules like second messengers relay the signal inside the cell.

Subsequently, during signal transduction, these molecules further propagate the signal through a series of interactions and chemical modifications such as phosphorylation. These events generate a cellular response, such as changes in metabolism, gene expression, or cell growth, which constitutes the final step in the signaling process.