Electrical Activity in Nerves - BACKGROUND INFORMATION

Question 1

The electrical impulses (action potentials) generated by nerves cause……(3 things)

Answer 1

1) brain activity
2) proper functioning of body organs
3) muscle contraction.

Question 2

To understand the creation of __________ _ _, the movement of ______(charged particles) must be understood.

Answer 2

action potentials

ions

Question 3

Ions move____ or______ of nerve and muscle cells using specific _________ .

Answer 3

into

out

channels

Question 4

Four important ion channels in the cell membranes of all cells are:

Answer 4

Sodium/Potassium Pump

Gated Sodium Channel

Gated Potassium Channel

Leakage/Nongated Potassium Channel

Question 5

Which Ion channel Moves 3 Na+ out while moving 2 K+ into the cell.

Answer 5

Sodium/Potassium Pump

Question 6

Which Ion channel Allows Na+ to flow into the cell if door is open.

Answer 6

Gated Sodium Channel

Question 7

Which Ion channel Allows K+ to flow out of the cell if door is open.

Answer 7

Gated Potassium Channel

Question 8

Which Ion channel Allows a constant flow of K+ out of the cell; Has no door/gate

Answer 8

Leakage/Nongated Potassium Channel

Question 9

Which Ion channel Is like a ACh receptor

Answer 9

Gated Sodium Channel

Question 10

Which Ion channel Creates a high [Na+] amount outside of the cell but will have a high [K+] amount inside the cell.

Answer 10

Sodium/Potassium Pump