1. What is the correct net result of 1 full cycle of the Na+ K+
pump?
Group of answer choices
3 K+ pumped out of the cell, 2 Na+ pumped into the cell, 1 ATP
split
2 K+ pumped out of the cell, 2 Na+ pumped into the cell, 1 ATP
split
3 Na+ pumped out of the cell, 2 K+ pumped into the cell, 2 ATP
split
3 Na+ pumped out of the cell, 3 K+ pumped into the cell, 1 ATP
split
3 Na+ pumped out of the cell, 2 K+ pumped into the cell, 1 ATP
split
2 K+ pumped out of the cell, 3 Na+ pumped into the cell, 1 ATP
split
2.
Where do you find the highest concentration of
i. Na+ ions
[ Select ]
["outside of the cell", "inside of the cell",
"the correct answer is not listed"]
ii. K+ ions
[ Select ]
["the correct answer is not listed", "inside of
the cell", "outside of the cell"]
iii. Ca++ ions
["the correct
answer is not listed", "inside of the cell", "outside of the
cell"]
3.
What causes a voltage-gated ion channel to open?
Group of answer choices
Physical pressure applied to the cell containing the ion
channel.
A concentration gradient.
Splitting an ATP.
The binding of a ligand.
A change to the electrical charge in the adjacent membrane.