Chapter 7.1.2 (Exam 4) Cell Signaling Flashcards
Cells Detect a Variety of Signals (6 cards)
1
Q
What must a cell have to respond to a signal?
A
A specific receptor that can detect it
2
Q
Where does signal-receptor interaction often occur?
A
At the cell membrane
3
Q
What does signal transduction do to the signal it sends?
A
it generally amplifies the signal
4
Q
What can responses to signals involve?
A
Responses may involve enzymes and transcription factors that are activated or inactivated to bring about the response
5
Q
What is crosstalk?
A
Signal transduction pathways can be interconnected
6
Q
Describe some characteristics of signal transduction pathways involved in crosstalk.
A
Pathways can branch; one activated protein may activate multiple pathways
Multiple pathways can converge
One pathway may be activated while another is inhibited
