What is a gated ion channel?
AP Biology: Cell Communication

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Biology
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
A type of transmembrane receptor that opens or closes in response to specific stimuli, allowing ions to flow across the membrane.
2.
FLASHCARD QUESTION
Front
What happens to the intracellular domain of a receptor protein after a ligand binds?
Back
It changes shape, initiating the transduction of the signal.
3.
FLASHCARD QUESTION
Front
What is signal transduction?
Back
The process by which a cell converts a chemical signal into a cellular response.
4.
FLASHCARD QUESTION
Front
Where can receptors for signal molecules be found?
Back
They may be embedded in the plasma membrane, or found within the cytoplasm or nucleus.
5.
FLASHCARD QUESTION
Front
What is a ligand?
Back
A molecule that binds to a specific receptor to initiate a cellular response.
6.
FLASHCARD QUESTION
Front
What is the role of a receptor in cell communication?
Back
To bind to ligands and initiate a response within the cell.
7.
FLASHCARD QUESTION
Front
What is a mutation in the receptor gene?
Back
A change in the DNA sequence of a receptor that can affect its function, such as altering the ligand binding site.
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