Diffusion And Osmosis

Question 1

Diffusion

Answer 1

Diffusion is the movement of molecules from high to low concentration

Question 2

Is diffusion active or passive?

Answer 2

Passive

Question 3

Example of diffusion

Answer 3

CO2 diffusing into a leaf

Question 4

Osmosis

Answer 4

Osmosis is the movement of water from an area of high water concentration to an area of low water concentration through a semi permeable membrane

Question 5

Is osmosis passive or active?

Answer 5

Passive

Question 6

Ideal form for an animal cell

Answer 6

Isotonic solution

Question 7

Ideal state of a plant cell

Answer 7

Hypotonic solution

Question 8

What is turgor?

Answer 8

Water in the cytoplasm pushes the cell membrane out against the cell

Question 9

Real word example of osmosis

Answer 9

Food preservation, e.g fish. Removes water from micro-organisms by osmosis

Question 10

What material is used as a semi-permeable membrane in the osmosis experiment?

Answer 10

Visking tubing

Question 11

What did you do to visking tubing before experiment?

Answer 11

Placed it in water to soften

Question 12

What are the results of the osmosis experiment?

Answer 12

Tube containing sucrose solution gains mass and becomes fuller due to the movement of water molecules by osmosis