Osmosis

Question 1

What is the definition of osmosis?

Answer 1

Osmosis is the movement of water molecules across a semi/partially-permeable membrane from a region of higher to lower water concentration.

Question 2

What type of molecules can pass through the semi-permeable membrane? Name an example.

Answer 2

Small molecules-

Water

Question 3

What type of molecules cannot pass through the semi-permeable membrane? Name an example.

Answer 3

Big molecules-

Sucrose

Question 4

What is there if water is passing into the lower concentrated area of water?

Answer 4

There is a steady net flow of water into the less concentrated area of water.

Question 5

Are water molecules able to pass through the membrane both ways. If so, why?

Answer 5

Water molecules can pass through the semi-permeable membrane both ways because they are always randomly moving.

Question 6

What happens to the stronger sugar solution in the process of osmosis?

Answer 6

Because of the movement of the water particles now concentrating the area with water more, the sugar solution becomes more dilute.