Sensing Flashcards
1
Q
Where can receptors be located?
A
- At the cell surface
* Inside the cell.
2
Q
Name three types of transmembrane receptor.
A
- Protein kinases
- Ion channel receptors
- G protein-linked receptors.
3
Q
Define direct transduction.
A
Results from the action of the receptor itself on effector proteins.
4
Q
Define indirect transduction.
A
Uses a second messenger to amplify the interaction between receptor binding and cellular reaction.
5
Q
Give examples of second messengers.
A
- cAMP
- cGMP
- Lipids
- Calcium ions (Ca++)
- Nitric Oxide (NO)
6
Q
Describe the basic biological circuit.
A
A receptor > signal transduction pathway > a response.
