Transport (2.3)

Question 1

Give a definition of osmosis

Answer 1

The movement of water from a high water potential to a low water potential

Question 2

Under what conditions would water move into a cell via osmosis?

Answer 2

If the water concentration is higher outside the cell than the inside, then water will move via osmosis into the cell

Question 3

Under what conditions would water move out of a cell via osmosis?

Answer 3

If the water concentration is lower outside the cell than inside, the water will move via osmosis to the lower concentration outside the cell

Question 4

Explain why plant cells store glucose in the form of amylose/amylopectin and animal cells store glucose in the form of glycogen

Answer 4

Glycogen has ends that can be liberated in order to give glucose to provide energy for animals, in order to maintain metabolic rate.
Amylose and amylopectin i

Question 5

Explain how and why the hydrolysis of amylopectin/glycogen stored in a cell would impact the movement of water via osmosis

Answer 5

Hydrolysis will increase the movement of water via osmosis because there is a greater number of solutes as the molecules are being broken into single monomers. The water will move into the cell.