ASSIGNMENT THREE
Biochemistry

The purpose of Assignment 3: Biochemistry, is to help all students become familiear with the building blocks that make up our bodies. After studying nutrition, knowledge of these molecules of life will lead students to understand the truth of the statement, " You are what you eat!"

(Hint: if you right-click and "open in new tab", you will be able to go back and forth between the various windows to compare the presented material.)

Characteristics of Water:
1) Print this page, and take out three colored pens.

2) Draw a collection of water molecules (2 colors) and their bonds (3rd color).
Label the atoms (H or O), and their charges (+ or -).

4) In 2-3 sentences, explain what kind of effect you think the opposite polar charges of the water molecules have on other atoms. Why might this be important? Justify your response.

5) One last review point: we think of water in a glass as still, but it actually is doing this.?

Building Macromolecules (Polymers):
1) Print this page.

2) View this page to help you fill in the table.

3) In the column that says: "name", give the name for each size of nutrient.
[Hint: look at the "Macromolecules & Monomers" Table 1/3 down the page as a starting point for giving you some of the names you'll need to draw.]

4) In the column that says: "drawing", draw each of the molecules (atoms & bonds).

5) In the column that says" "purpose", write another purpose/function for each nutrient in the body.
[Note: Give a new purpose, NOT previously given in assignment 2]

Proteins:
1) Make sure you list ALL 9 IMPORTANT FUNCTIONS from this page.
['cuz you know: IT'S ALL ABOUT THE PROTEINS!]

Enzyme Proteins:
1) Print this page and take out colored pens/pencils.

2) Watch this video showing how enzymes work.

3) Use your colors to draw your own example of enzyme function.
Be sure to label: enzyme, substrate, active site, products.

[Hint: the enzymes is the part that may be reused over and over!]

4) In 2-3 sentences, describe what your life would be like if you had no enzymes.
Justify your response.

	Assessment Rubric for Assignment 3 - Biochemistry
	Excellent	Adequate	Insufficient
	5 pts.	3-4 pts.	1-2 pts.
Water Molecules	At least 5 water molecules are drawn in two colors with the bond in a third color. All parts are labeled. Question is answered with justification.	Less than 5 water molecules are drawn. Not all parts are labeled. Question is answered without justification.	Less than 3 water molecules are drawn. Not all parts are labeled. Question is not answered.
Building Macromolecules	All names and drawings are created in appropriate boxes. A new purpose (not given previously in assignment 2) is given in the approrpriate boxes.	Most names and drawings are created in appropriate boxes. Some of the purposes are reused from assignment 2.	Few names and drawings are created in appropriate boxes. Purposes are either missing or repeated from assignment 2.
Enzyme Proteins	A colored drawing of enzyme action is properly labeled and uses new shapes for demonstation. Question is answered and justified.	A colored drawing of enzyme action is mostly labeled and uses the same shapes for demonstration. Question is answered but not justified.	A drawing of enzyme action is unlabeled. Question is not answered.

END