Aim: I am going to see what happens when a potato chip is put into 0m, 0.25m, 0.5m, 0.75m and 1m salt water.

Authors Avatar

OSMOSIS

Introduction:

Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.

The definition contains three important statements:

  1. Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.
  2. Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.
  3. Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration

Cell membranes are completely permeable to water; therefore, the environment the cell is exposed to can have a dramatic effect on the cell.

Isotonic Solutions: contain the same concentration of solute as another solution. When a cell is placed in an isotonic solution, the water diffuses into and out of the cell at the same rate. The fluid that surrounds the body cells is isotonic.

 

In the diagram provided above it states a partially permeable membrane with sugar. In my investigation I will be using a salt solution

Aim:

I am going to see what happens when a potato chip is put into 0m, 0.25m, 0.5m, 0.75m and 1m salt water.

Prediction:

Before my experiment, I predict that if there is less concentration there will be more gain in mass because more water will enter the potato chip. Also this will depend on the time. I predict the longer the time the more mass the chips will gain.

Join now!

The reason for my prediction is based on a preliminary test I carried out before hand. This is how it turned out:

← Petri dish, split into three sections 1, 2 and 3.

0m pure water:

In this experiment is shows that each potato, after each given time, they all gained mass, instead of loosing it. This means that the water from the beaker transferred into the potato, making it gain mass

1m salt solution:

After doing this second experiment it ...

This is a preview of the whole essay