Communication and response Flashcards
1
Q
What is kinesis?
A
Undirected movement
2
Q
What is tropism?
A
Plant growth in response to a stimulus
3
Q
How is resting potential re-established
A
Na*/K+ ion channel actively transports 3 sodium ions out the axon and 2 potassium ions into the axon, Which decreases the potential inside the axon
4
Q
What is taxis?
A
Movement in response to a stimulus
5
Q
What neurones is connected to rod and cone cells
A
Bipolar neurons
6
Q
What is depolarisation?
A
Potential inside the axon increases due to the threshold being reached and the sodium channels open so sodium ions flood in
7
Q
What is repolarisation
A
The sodium channels close and potassium ion Channel opens, causing the potential In the axon to decrease
