ntlb3

Data Sheet: Activity – Macromolecules

All Content is Copyright Protected and May NOT Be Posted or Shared Outside Of The Classroom

Name

Course

Date

Activity Data Code      

Procedure I – Group 1: Known Sample Solutions

Complete the table below using your data from Procedure I. For each sample solution (A-E) indicate any color change that occurs when a test solution is added. Fill in the last column (Macromolecule Classification) using data found under the Activity Form tab.

Data Table I

4
TableTop Science – All Rights Reserved

1
TableTop Science – All Rights Reserved

Known

Sample Solution

Test

Solution

1

Reaction

Test

Solution

2

Reaction

Test

Solution

3

Reaction

Test

Solution

4

Reaction

Test

Solution

5

Reaction

Macromolecule

Classification

A

B

C

D

E

Observations and Questions

[1] Write a hypothesis statement for the experiment you conducted for Procedure I.

[2] Which variable represents the independent variable? What information helped you to come to that decision?

[3] Would you characterize this experiment as qualitative or quantitative? What information helped you to come to that decision?

[4] Refer to your completed Data Table I and place the appropriate answer to each of the statements below.

Answers: amino acid, starch, fat, sugar or starch, protein or amino acid

Statements:

Test Solution 1 reacts with:
Test Solution 2 reacts with:
Test Solution 3 reacts with:
Test Solution 4 reacts with:
Test Solution 5 reacts with:

Procedure II – Group 2: Unknown Sample Solutions

Complete the table below using your data from Procedure II. For each sample solution (A-E) indicate any color change that occurs when a test solution is added. Next, use Data Table I to determine the macromolecule classification for each sample solution. Hint: compare the color changes in both tables to make your determinations.

Data Table II
4
TableTop Science – All Rights Reserved

3
TableTop Science – All Rights Reserved

Unknown

Sample Solution

Test

Solution

1

Reaction

Test

Solution

2

Reaction

Test

Solution

3

Reaction

Test

Solution

4

Reaction

Test

Solution

5

Reaction

Macromolecule

Classification

A

B

C

D

E

Observations and Questions

[5] In Procedure II, did any of your unknown sample solutions (A, B, C, D, E) contain sugars? If yes, which one? What information helped you to come to that decision?

[6] In Procedure II, did any of your unknown sample solutions (A, B, C, D, E) contain protein? If yes, which one? What information helped you to come to that decision?

[7] Using the laboratory tests in this experiment, would you be able to distinguish between a small molecule such as amino acid from a larger molecule such as a protein? Explain why or why not.

[8] Using the laboratory tests in this experiment, would you be able to distinguish between a starch and a sugar such as glucose? Explain why or why not.