1. Unit 6
Interactions

2. Opener Get a computer and complete Reading Comp 11 No talking
Use your notes but not each other
10 minutes

3. Agenda Notes: Protein Structure Activity: Toothpickase
Homework: Read and take notes on Ch
Essential Questions:
Describe how neuron structure and organization reflect function in information transfer?
Explain how action potential signals are conducted by axons?

4. Basic Structure of Proteins
Proteins are polymers of amino acids
20 standard amino acids coded for by DNA
Proteins are large, complex molecules with multiple levels of structure
Primary: order of amino acids
Secondary: twists or folds in amino acid chain
Tertiary: overall 3D shape
Quaternary: multiple chains of amino acids
The structure at each level depends on:
How the amino acids interact with each other
How the amino acids interact with the environment (i.e.: water)

5. Amino Acid Structure

9. Primary Secondary Structure
Amino acids that are close to each other can interact
The order and kind of the amino acids determines which amino acids interact, and how
The interactions can affect the local shape of the chain

11. Secondary Tertiary Structure
Amino acids located in different regions of the chain can interact
The order and kind of the amino acids determines which amino acids interact, and how they interact
The interactions determine the overall 3d shape of the protein

12. Tertiary Structure

13. Tertiary Quaternary Structure
Amino acids located on different chains can interact
The order and kind of the amino acids determines which amino acids interact, and how
The interactions determine if multiple chains link together to form the protein

14. Quaternary Structure

16. Big Idea What a protein can do depends on its structure
The structure depends what amino acids are present in the protein, the order of the amino acids, and the amino acid interactions (with each other and the environment)

17. Enzyme Video Glue the vocabulary words into your notebook
Fill it out as you watch the video

18. Toothpickase