osmosis I have chosen to test what effect the concentration of sucrose solution has on the chips.

This essay hasn't yet been marked by one of our teachers

You can view 21 essays on Exchange, Transport & Reproduction that have been Marked by Teachers

The first 200 words of this essay...

Biology Coursework - Osmosis

Introduction

For my Biology coursework I am investigating osmosis. I am doing a practical to find out how osmosis affects one of the variables listed below.

Variables

* Temperature

* Concentration of sucrose solution

* Time in solution

* Beginning mass of chip

* Amount of distilled water with the sucrose solution

* Beginning surface area of chip

Idea

I have chosen to test what effect the concentration of sucrose solution has on the chips.

Prediction

* I think that the chips in the test tubes containing more sucrose solution than distilled water will increase in temperature.

* I think that the chips in the test tubes containing less sucrose solution than distilled water will decrease in mass.

* I think that the chips in the test tubes containing equal amount of sucrose solution and distilled water will stay roughly the same mass.

I think the graph of the results will turn out like the sketch I have drawn below.

Page 1

Reason

Osmosis is the passage of water molecules from a region of high water concentration,