Membrane Transport

Question 1

The difference between the inside vs outside of the cell for sodium is

Answer 1

10 fold

Question 2

The difference between the inside vs outside of the cell for potassium is

Answer 2

30 fold

Question 3

The difference between the inside vs outside of the cell for calcium is

Answer 3

1000 fold

Question 4

The difference between the inside vs outside of the cell for chlorine is

Answer 4

5 fold

Question 5

The difference between the inside vs outside of the cell for protein is

Answer 5

5 fold

Question 6

Substances with the lowest permeability across a membrane include

Answer 6

Charged ions/molecules, and large polar molecules

Question 7

Highest permeability across a membrane include

Answer 7

Gasses and hydrophobic molecules

Question 8

Active membrane transport requires

Answer 8

ATP

Question 9

Passive membrane transport involves

Answer 9

Diffusion

Question 10

_______ are always open, water filled, and allow ions and other small molecules to diffuse across a membrane

Answer 10

Pores

Question 11

Water selective pores in the kidney are called

Answer 11

Aquaporins (AQP)

Question 12

________ form pores between cells

Answer 12

Gap junctions

Question 13

Selective pores with gating mechanism are called

Answer 13

Ion channels

Question 14

The sodium potassium pump (Na/K ATPase) exchanges _____ Na out and ____ K in

Answer 14

3; 2

Question 15

Ca/H ATPase exchanges ___ Ca for __ H

Answer 15

1; 2

Question 16

H/K ATPase exchanges __H ions out and ___K ions

Answer 16

2;2

Question 17

2 types of secondary active transport are

Answer 17

Antiporters

Symporters