Page 17 - 02 Cells Biology Notes

a. Name the process that is responsible for the changes that have
occurred. [1 mark]
b. Explain why these changes have occurred. [3 mark]
c. Where does this process occur in a plant? [1 mark]
d. What is the importance to the plant of this process? [1 mark]

Answers

1. a. The volume of water in the dish decreased.
b. The volume of salt solution in the potato increased.
2. a. Osmosis
b. 3 points from:
- there was a higher concentration of water in the dish than in the potato
- so water moved into the potato.
- from a high concentration of water to a lower concentration of water
- by osmosis.
c. Root hairs, or in the roots.
d. Osmosis enables the plant to absorb water to maintain cell turgidity (or to
replace water lost by transpiration).