What is signal amplification in cell communication?
Cell Communication

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Science
•
12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Signal amplification is the process by which a small number of signaling molecules can produce a large response in the target cell, often achieved through an enzyme cascade.
2.
FLASHCARD QUESTION
Front
What is an example of local cell communication?
Back
An example of local cell communication is neurons communicating across a synapse.
3.
FLASHCARD QUESTION
Front
What is a secondary messenger?
Back
A secondary messenger is a molecule that relays signals received at receptors on the cell surface to target molecules inside the cell. An example is cAMP.
4.
FLASHCARD QUESTION
Front
How do steroid hormones differ from protein hormones?
Back
Steroid hormones are hydrophobic and can pass through cell membranes, while protein hormones are hydrophilic and cannot.
5.
FLASHCARD QUESTION
Front
Where does a ligand bind to initiate signal transduction?
Back
A ligand binds to a receptor to initiate signal transduction.
6.
FLASHCARD QUESTION
Front
What role do receptors play in cell communication?
Back
Receptors are proteins on the cell surface or inside the cell that bind to signaling molecules (ligands) and initiate a cellular response.
7.
FLASHCARD QUESTION
Front
What is the function of cAMP in cell signaling?
Back
cAMP acts as a secondary messenger that transmits signals from receptors to target molecules within the cell, amplifying the signal.
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