The figure below illustrates a model of a signal transduction cascade, initiated by the bind- ing of a ligand to a membrane-bound receptor. ligand A partial model of a signal transduction pathway. A B inactivated molecules C D receptor protein A Based on the figure, which of the following describes the most likely outcome of a mutation that changes the intracellular region of receptor protein A? activated molecule 1 activated molecule 2 activated molecule 3 The receptor will not activate molecule 1, but the activation of molecules 2 and 3 will continue at lower rates. Molecule 1 will not become activated, preventing the activation of molecules 2 and 3 and the subsequent cellular response. The ligand will not be able to bind the membrane-bound receptor, preventing the signal transduction pathway from initiating The ligand that binds to protein A will not enter the cell, preventing the cellular response from occurring.

The figure below illustrates a model of a signal transduction cascade, initiated by the bind- ing of a ligand to a membrane-bound receptor. ligand A partial model of a signal transduction pathway. A B inactivated molecules C D receptor protein A Based on the figure, which of the following describes the most likely outcome of a mutation that changes the intracellular region of receptor protein A? activated molecule 1 activated molecule 2 activated molecule 3 The receptor will not activate molecule 1, but the activation of molecules 2 and 3 will continue at lower rates. Molecule 1 will not become activated, preventing the activation of molecules 2 and 3 and the subsequent cellular response. The ligand will not be able to bind the membrane-bound receptor, preventing the signal transduction pathway from initiating The ligand that binds to protein A will not enter the cell, preventing the cellular response from occurring.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter4: Principles Of Neural And Hormonal Communication

Section4.5: Intercellular Communication And Signal Transduction

Problem 3CYU: Outline the three general means by which binding of a water soluble extracellular chemical messenger...

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