Multiple Choice
Which of the following is not a classification of signaling molecules?
14. Cell Signaling
Overview of Signaling Molecules
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Signaling molecules work only through signaling cascades.
A
True
B
False
Verified step by step guidance1
Understand the concept of signaling molecules: Signaling molecules are chemicals that transmit information between cells. They play a crucial role in cellular communication and can initiate various cellular responses.
Explore the concept of signaling cascades: A signaling cascade is a series of biochemical events inside a cell that are triggered by a signaling molecule binding to a receptor. These cascades often involve multiple steps and proteins, leading to a specific cellular response.
Consider alternative mechanisms: While signaling cascades are a common pathway for signaling molecules, they are not the only mechanism. Some signaling molecules can have direct effects without involving a cascade, such as binding directly to intracellular receptors or ion channels.
Evaluate the statement: The statement 'Signaling molecules work only through signaling cascades' implies exclusivity, suggesting that signaling molecules cannot function through any other means.
Conclude based on the evaluation: Since signaling molecules can indeed work through mechanisms other than signaling cascades, such as direct binding to receptors or ion channels, the statement is false.
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