What happens in the transduction phase of cell signaling when protein signal mol
ID: 178056 • Letter: W
Question
What happens in the transduction phase of cell signaling when protein signal molecules are present? Signal molecules induce a change in membrane proteins that activates other proteins within the cell. Specialized cell surface proteins bind to specific protein signal molecules outside the cell. Protein signal molecules outside the cell diffuse through the phospholipids In the cell membrane. A cell reacts to the message from signal molecules by initiating changes in shape, activity, or behavior. The word transduction means to transfer or to lead across. What is transferred during signal transduction?Explanation / Answer
Answer is A : Signal molecules induce a change in the membrane protein that activates other proteins within the cell,
When a signal binds to the receptor it receives the signal and it brings cellular response by cascade of proteins is called as signal transduction pathway, in which the signal molecule induces change in expression of gene by stimulation and regulates any activity of the cellular process.These signal molecules are termed as secondary messengers, example calicium ions, cAMP are cites most. Except steroid hormones all type of protein undergoes this three mechanisms of signal transduction reception, transduction, reponse. in case of steroid hormone which can solubilise and pass through phospholipid bilayer.
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