Osmosis

Question 1

What is osmosis

Answer 1

Osmosis is the diffusion of water molecules from a dilute solution (high concentration of water) to a more concentrated solution (low concentration of water) across a selectively permeable membrane.

Question 2

Step 1

Answer 2

Cut the potato into 3cm cubes, making sure they all come from the same potato

Question 3

Step 2

Answer 3

Weigh all pieces of potato and record their weight. Make sure to measure them to 2 decimal places

Question 4

Step 3

Answer 4

Add distilled water to one measuirng cylinder, add 0.25 molar sucrose solution to another, add one more with 0.5 molar sucrose

Question 5

Step 4

Answer 5

Add the potato into each solution and let it sit for up to 24 hours

Question 6

Step 5

Answer 6

Remove the potatoes from the solutions, pat them dry making sure you dont remove too much.

Question 7

Step 6

Answer 7

Weigh all pieces of the potato and measure the difference from the initial weight

Question 8

Step 7

Answer 8

Measure the pieces of potato and see if they’ve increased from their initialsize

Question 9

How do you know if osmosis worked or not

Answer 9

Osmosis worked if there is an increase, if there is a decrease, osmosis didn’t work