Understanding Macromolecules: Key Elements and Bonds

1. Macromolecules Chapter 2 Section 3

2. Carbon • Hydrogen • Oxygen • Nitrogen • Phosphorus • Sulfur Next to each write down the # of valence e’s & how many bonds each one can form. What are the 6 elements most common to living things?

3. Carbon forms the backbone of macromolecules • Why? • 4 valence electrons  4 bonds • Forms long chains Carbon

4. Macromolecules • Carbohydrates • Lipids • Proteins • Nucleic Acids

12. Which one of the following molecules are carbohydrates?

13. Indicator • Iodine is an indicator for carbohydrates! • Bread Demo

14. Macromolecules • Carbohydrates • Lipids • Proteins • Nucleic Acids

21. Count the C,H,O! Write down the ratio!

22. Macromolecules • Carbohydrates • Lipids • Proteins • Nucleic Acids

27. Peptide Bond Bond between acid and amino group in a protein

28. Polypeptide

30. Shape is Important!

31. Macromolecules • Carbohydrates • Lipids • Proteins • Nucleic Acids

36. Nucleotide Structure