Molecule Madness Online Learning Activity
NAME_____________________
Go to each of the websites that are given and then answer the related questions or fill in the charts.
1. http://www2.nl.edu/jste/bonds.htm
http://bcs.whfreeman.com/thelifewire/content/chp02/02020.html
Describe an ionic bond – use the example given on the website:
Describe a covalent bond – use the example given on the website:
What is the difference between a polar and a nonpolar covalent bond?
2. http://programs.northlandcollege.edu/biology/Biology1111/animations/hydrogenbonds.html
http://www.johnkyrk.com/H2O.html
The two websites above deal with hydrogen bonds and the polarity of water.
Explain why water forms weak hydrogen bonds between its molecules.
How many water molecules can one water molecule hydrogen bond to?
3. http://programs.northlandcollege.edu/biology/Biology1111/animations/dissolve.html
http://www.mhhe.com/physsci/chemistry/essentialchemistry/flash/molvie1.swf
Explain how salt (sodium chloride) dissolves in water.
When sodium chloride dissolves what particles are floating around in solution?
4. http://www.johnkyrk.com/pH.html
Use the pH scale (by moving the arrow back and forth) find the pH of the following substances:
Strong HCl (hydrochloric acid): _____
Digestive juices: _____
Tomatoes: _______
Chicken: _____
Distilled water: ______ Urine: _____
Sea water: _______
Baking Soda: _____
Oven cleaner: ______
5. http://www.zerobio.com/drag_oa/coolermolecules/drag_and_drop_cooler_molecules.html
Use the “drag and drop molecules to figure out the 10 structural formulas of the given molecules. Put the name
and formulas below.
How did you figure out the formulas? What “rules” did you use?
6. http://www.mcgrawhill.ca/school/applets/abbio/quiz/ch06/how_enzymes_work.swf
Draw a diagram of enzyme action showing the enzyme, the substrate, the active site, the binding of the substrate
at the active site creating an enzyme-substrate complex, the product and the original enzyme unchanged.
Go to the following websites to fill in the chart below and to answer the questions on the next page.
http://www.cst.cmich.edu/users/baile1re/bio101fall/atmolorga/molecu/moleprez/sld001.htm
http://www2.visalia.k12.ca.us/eldiamante/science/biology/powerpoints/biochem.pdf
http://bcs.whfreeman.com/thelifewire/content/chp03/0302002.html
http://www.wisc-online.com/objects/index_tj.asp?objID=AP13104
(carbohydrates)
http://www.wisc-online.com/objects/index_tj.asp?objID=AP13204
(lipids)
http://www.wisc-online.com/objects/index_tj.asp?objID=AP13304
(proteins)
Type of
Molecule
Elements
Monomers
General structure function
Examples
Test for
1. Describe the relationship between a monomer and a polymer and give an example from one of the
macromolecules in the chart.
2. Which macromolecule is not a polymer?
3. What is the chemical process that links the monomers together?
4. What is the chemical process that breaks monomers apart?
5. What essential protein is involved in the breaking and linking of monomers?
6. Describe the differences between a monosaccharide, a disaccharide, and a polysaccharide?
7. Name three important polysaccharides. Describe their functions.
8. What type of molecule is glucose?
9. How many different amino acids are there?
10. One of the most important roles of proteins is to function as enzymes. Generally, describe the function of
enzymes.
11. What does it mean to say that a protein functions by a “lock and key” model?
12. What is the active site of a protein?
13. What determines the shape of a protein?
14. What type of molecule is insulin? What is the function of insulin?
15. What type of molecule is hemoglobin?
What is the function of hemoglobin?