Cell Membrane Transport Systems

Question 1

The gate keeper for the entrance and exit of many substances; controls what goes goes in and out of the cell

Answer 1

Plasma Membrane

Question 2

Two categories of movements of substances into and out of the cell

Answer 2

Mediated and Non-Mediates Processes

Question 3

These aid mediated processes.

Answer 3

Transmembrane/Transport Proteins

Question 4

What are the four types of non-mediated processes?

Answer 4

1) Bulk Flow; 2) Diffusion; 3) Osmosis; and 4) Dialysis

Question 5

What are the two types of mediated processes?

Answer 5

Facilitated Diffusion and Active Transport

Question 6

This transport protein moves one kind of molecule towards one direction.

Answer 6

Uniport

Question 7

This type of transport protein moved different molecules in the same direction.

Answer 7

Symport

Question 8

This type of transport protein moves different molcules toward different directions.

Answer 8

Antiport

Question 9

What is the driving force of bulk flow?

Answer 9

Pressure Gradient

Question 10

Wht is the driving force of diffusion?

Answer 10

Concentration Gradient

Question 11

What is the concentration gradient?

Answer 11

Movement of substances from a region of higher concentration to a region of lower concentration

Question 12

Relationship of concentration gradient and rate of diffusion

Answer 12

Directly Proportional

Question 13

Relationship between temperature and rate of diffusion

Answer 13

Directly Proportional

Question 14

Relationship between molecular weight of the diffusing substance and rate of diffusion

Answer 14

Inversely Proportional/Indirect

Question 15

Relationship between distance through which diffusion occurs and rate of diffusion

Answer 15

Inversely Proportional/Indirect

Question 16

Relationship between the presence of other molecules and rate of diffusion

Answer 16

Inversely Proportional/Indirect

Question 17

This is a special type of diffusion that is concerned with the diffusion of the solvent.

Answer 17

Osmosis

Question 18

This is the solvent in living systems.

Answer 18

Water

Question 19

What is the direction of the movement of water in osmosis?

Answer 19

From a region with a higher concentration of water (dilute) to a region with lower concentration of water (concentrated)

Question 20

In osmosis, only water molecules ________.

Answer 20

Equilibriate