Start on p 3 of your lab:

Go to Table 2 – chemical Test results

The next slides will enable you to complete the table, and answer the question beneath the table.

Blue colored glucose indicator SolutionTube 1 distilled water

Tube 2 starch

Tube 3 glucose

Amber-colored starch indicator SolutionTube 1 distilled water

Tube 2 starch

Tube 3 glucose

Go back to page 2: read and highlight directions # 1-10

Look at the next slide to answer questions on p 4 of your lab.

Initial state of cell model: to complete Final state of cell model: again use letters “G, S, Diagram P4. Use letters “G,S and I” . and I”.

On p 4 it says

“use a pipette to transfer 10 drops of the solution in the beaker (outside the cell) to a clean test tube. Test it with Glucose Indicator Solution.

This picture shows the result of this test: tube one: just Benedict’s Blue tube two: benedicts with beaker solution

answer question 3 p 4.

Finish all questions p3-5.

Part 2 – Diffusion of Water

• Read and highlight p 5 and 6.

• P 7: Here is what the onion cells looked like. Answer qstn p7 #6:

•This is how we add slat water to our slide (#7):

• The paper towel draws the salt water under the coverslip and across the cells.

Use these images to answer p7 #8 – 11:

• After we added salt water:

• Before after

Read #12. The picture below shows what you will see. Answer #13-14