Question

osmosis is the diffusion of water from an area of high concentration to an area of low concentration. only water moves in osmosis! the diagrams below show the concentration of water and salt inside the cell and the concentration of water and salt surrounding the cell. complete the sentences below by comparing the concentration of the water inside the cell and the concentration outside the cell.
1.
5% nacl 95% h₂o
95% nacl 5% h₂o
a. water will flow ____________ (into the cell, out of the cell, in both directions)
b. the cell will ____________ (shrink, burst, stay the same)
2.
5% nacl 95% h₂o
5% nacl 95% h₂o
a. water will flow ____________ (into the cell, out of the cell, in both directions)
b. the cell will ____________ (shrink, burst, stay the same)
3.
95% nacl 5% h₂o
5% nacl 95% h₂o
a. water will flow ____________ (into the cell, out of the cell, in both directions)
b. the cell will ____________ (shrink, burst, stay the same)
use arrows to show the movement of water!

Explanation:

Step1: Recall osmosis principle

Water moves from high - water - concentration area to low - water - concentration area.

Step2: Analyze case 1

Inside cell: 95% H₂O, outside cell: 5% H₂O. Water will flow out of the cell as water concentration is higher inside. The cell will shrink as it loses water.

Step3: Analyze case 2

Inside cell: 95% H₂O, outside cell: 95% H₂O. There is an equal water concentration inside and outside. Water will flow in both directions at equal rates. The cell will stay the same as there is no net water gain or loss.

Step4: Analyze case 3

Inside cell: 5% H₂O, outside cell: 95% H₂O. Water will flow into the cell as water concentration is higher outside. The cell will burst as it gains too much water.

Answer:

1.
a. out of the cell
b. shrink
2.
a. in both directions
b. stay the same
3.
a. into the cell
b. burst