3.2 Osmosis

Question 1

What is Osmosis?

Answer 1

Osmosis is the diffusion of water from a region of high water potential to a region of low water potential through a partially permeable membrane

Question 2

Solute + Solvent = ?

Answer 2

Solution

Question 3

What is concentration?

Answer 3

The amount of dissolved solute in a given volume of solvent

Question 4

What are the 3 types of solutions?

Answer 4

Hypertonic, Isotonic, and Hypotonic

Question 5

Describe a Hypertonic solution

Answer 5

It is concentrated, resulting in a low water potential, so water comes in the solution via osmosis. In a plant cell, this causes the cell to be plasmolyzed, and the cell membrane detaches from the cell

Question 6

Describe an Isotonic solution

Answer 6

There is no gain or loss of water as the solution has the same amount of water potential as its surroundings

Question 7

Describe a Hypotonic solution

Answer 7

It is dilute, resulting in a high water potential, so water goes out of the solution via osmosis. In a plant cell, this causes the cell to be turgid, and slightly expands