Multiple Choice
What happens when a signaling molecule binds to a ligand-gated ion channel?
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16. The Endocrine System
Membrane Bound Receptors and Secondary Messengers
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Where are the receptors for hydrophilic hormones typically located?
A
In the cytoplasm
B
Inside the nucleus
C
In the mitochondria
D
On the cell membrane
Verified step by step guidance1
Understand that hydrophilic hormones are water-soluble and cannot easily pass through the lipid bilayer of the cell membrane.
Recognize that because hydrophilic hormones cannot enter the cell, their receptors must be located on the cell surface to interact with these hormones.
Recall that cell membrane receptors for hydrophilic hormones are typically proteins that span the membrane, allowing them to transmit signals from the outside to the inside of the cell.
Consider the role of these receptors in signal transduction, where the binding of the hormone to the receptor triggers a cascade of intracellular events.
Conclude that the receptors for hydrophilic hormones are located on the cell membrane, enabling them to effectively bind to the hormone and initiate a cellular response.
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