3.4 Diffusion and Osmosis

Question 0

Is the movement of molecules across a cell membrane without energy input from the cell.

Answer 0

Passive transport

Question 1

How does the mechanism in a dam work?

Answer 1

When a dam have a lot a water the door open and then the water go away.

Question 2

Is the movement of molecules in a fluid or gas from a region of higher concentration to a region of lower concentration.

Answer 2

Diffusion

Question 3

Is the difference in the concentration of a substance from one location to another.

Answer 3

Concentration gradient

Question 4

They move across a semipermeable membrane from an area of higher water concentration to an area of lower water concentration. This process is called:

Answer 4

Osmosis

Question 5

A solution is__________ to a cell if it has the same concentration of dissolved particles as the cell.

Answer 5

Isotonic

Question 6

A __________ solution has a higher concentration of dissolved particles than a cell.

Answer 6

Hypertonic

Question 7

Is the diffusion of molecules across a membrane through transport proteins.

Answer 7

Facilitated diffusion

Question 8

A _____________ solution has a lower concentration of dissolved particles than a cell.

Answer 8

Hypotonic

Question 9

To a cell if it has the same concentration of solutes as the cell. Equal amounts of water enter and exit the cell, so its size stays constant.

Answer 9

Isotonic solution

Question 10

Has more solutes than a cell. Overall, more water exits a cell in ___________________, causing the cell to shrivel or even die.

Answer 10

Hypertonic solution

Question 11

Has fewer solutes than a cell. Overall, more water enters a cell in ________________, causing the cell to expand or even burst.

Answer 11

Hypotonic solution