Day+7+Biomolecules

Daily Agenda: 1. Warm up - 15 minutes 2. Biomolecules Table - 15 minutes 3. Biomolecule Tests Demo - 10 minutes 4. Macromolecule Web Quest - 30 minutes 5. Biomolecule Sort - 20 minutes

Objective: 2.01 Compare and contrast the structure and functions of the following organic molecules: • Carbohydrates. • Proteins. • Lipids. • Nucleic acids.


 * Macromolecule Web Quest **

I. Go to [|www.chem4kids.com] click on BIOCHEMISTRY Read the introduction then proceed with the button "Next Stop on Tour." Move from macromolecule to macromolecule by clicking on the words near the top left of the window. II. Answer all questions with complete sentences on a separate sheet of lined paper.

1. What is the difference between a monosaccharide and a disaccharide? Provide examples of each. 2. Why is sugar considered an organic compound? 3. What are the three elements found in all sugars? 4. According to the web site what do potatoes, wood and lobster shells have in common?
 * Carbohydrates**

5. What are the two main parts of a lipid? 6. Explain what makes a fat saturated or unsaturated? 7. How does the basic structure of a steroid differ from other macromolecules such as carbohydrates? 8. What is the role of waxes? 9. Compare the energy values of a carbohydrate molecule versus a fat molecule.
 * Lipids**

10. How many essential amino acids are there? 11. What makes a substance an acid? 12. What is formed when amino acids form long chains or polymerize? 13. Choose one amino acid and draw its structure. __Circle__ the part of the molecule that is the "amino group."
 * Amino Acids**

14. How many steps or structures are involved in folding a protein? 15. What is meant by the scientific term "blob?"
 * Proteins**

16. What are the five monomer units of a NA? 17. What is a double helix? 18. What are the three parts to a nucleotide? 19. What makes a substance a base? 20. What is the full name of DNA?
 * Nucleic Acids**