Macromolecule Lab

Set up

Title

• The effect of _________ on ___________.

Introduction

• Only one introduction, 3 paragraphs:– 1. explain macromolecules and indicators– 2. describe the lab procedure– 3. relate to chemistry and real life

Hypothesis (4)

• You will write a hypothesis for EACH molecule tested, in if/then/because format:– Carbohydrates– Lipids– Proteins– Starch

Materials (4)

• Create a list of materials used for each of the 4 macromolecules tested.

Methods (4)

• List your methods for each of the 4 macromolecules tested.

Variables/Controls (4)

• Each macromolecule will have different variables/controls, so you will need this 4 times too:– Dependent (what you are measuring)– Independent (what you are manipulating)– Confounding (what stays the same)– Control (what you are comparing it to)

Data Table (1)

Graph

• No graph is needed for this experiment

Conclusion (1)

• Only one conclusion, 3 paragraphs:– Discuss results, support/refute hypothesis– Sources of error? Changes if you were to repeat?– Relate to real life

Literature Cited (1)

• Cite your sources!– This ppt– Your notes– Lab procedure– Etc.

Protein• Dependent variable: Color change of solution• Independent variable: Protein• Confounding variable: test tubes, droppers,

Biuret’s solution• Control: water

• Expected results: the tube with protein will turn purple, the tube with water will stay clear