Cell Transport

Question 1

Name 4 molecules that move across the cell membrane

Answer 1

Water
Oxygen
Carbon dioxide
Glucose

Question 2

Describe what happens to a potato left in pure water

Answer 2

The potato will gain mass
Because there is a high concentration of water molecules in the solution compared to in the potato cells
Via OSMOSIS they water will move from a higher concentration to a lower concentration, the water will move INTO the potato cells causing the potato to gain mass

Question 3

What happens to a potato left is a 80%sugar solution

Answer 3

The potato will loose mass
There is a higher concentration of water inside the potato cells compared to in the solution
The water will move OUT OF the potato cells via OSMOSIS because water molecules move from a higher concentration to a lower concentration causing the potato to loose mass