Name_____________
Diffusion and Osmosis Prelab
Due at the beginning of Lab
1.
Read the Introduction to Experiment 1 and the first five instructions in the
Procedure section (page 48). In the space below, write your hypothesis and prediction,
items 6 and 7 (found at the bottom of page 48). If you are not sure what the proper format is,
review the format of hypotheses and predictions in Ch. 1 of the text and in your notes from week
1.
Hypothesis
Prediction
2.
Which is a bigger molecule: glucose or starch? Explain your answer. Don’t guess.
Look it up!
3.
Read the instructions for Experiment 2 (pg. 51). Describe the purpose of this activity.
4.
What happens when you bath a cell in salty water?