Check the box under each a amino acid. If there are no a amino acids at all, check the "none of them" box under the table. Note for advanced students: don't assume every amino acid shown must be found in nature. HO-C=O CH-CH3 H₂N-C-COOH HO H 0= none of them NH3 H₂N 0= NH3 O 0- -C- CH3 CH 0=0 CH₂ OH OH -H H₂N CH- CH3 CH ő 0¹ O CH₂ OH 0= COOH NH3 X 3

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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# Recognizing Alpha Amino Acids

## Instructions

Check the box under each α (alpha) amino acid. If there are no α amino acids at all, check the "none of them" box under the table.

**Note for advanced students:** Don't assume every amino acid shown must be found in nature.

## Structures

The image presents six chemical structures. Students must identify each as α amino acids or not. Boxes are provided under each structure for selection.

1. **Structure 1:**
   - Contains: Hydroxyl group (HO), carbonyl group (C=O).
   - Side chains with methyl groups (CH₃).
   - Amino group (NH₂) attached.
   
2. **Structure 2:**
   - Primary amine group (H₂N) and a single hydroxyl group (OH) are present.
   - Central carbon with a carboxyl group (COOH).

3. **Structure 3:**
   - Has an amino group (NH₂) and a carboxyl group (COOH).
   - Includes a hydroxyl side chain (CH₂OH).

4. **Structure 4:**
   - Shows a deprotonated hydroxyl group (O⁻) and a protonated amino group (NH₃⁺).
   - Carbon backbone with carboxyl group.

5. **Structure 5:**
   - Contains a positively charged amino group (NH₃⁺) and negatively charged carboxyl group (O⁻).
   - Includes a hydroxyl side chain (CH₂CH₂OH).

6. **Structure 6:**
   - Similar features as structure 4 but with different side chains.

## Options
- A checkbox under each diagram to indicate selected α amino acids.
- A checkbox for "none of them" if no structure represents an α amino acid.

### Buttons
- **Explanation:** Provides detailed insights into each structure.
- **Check:** Validates the selected answers.

© 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center
Transcribed Image Text:# Recognizing Alpha Amino Acids ## Instructions Check the box under each α (alpha) amino acid. If there are no α amino acids at all, check the "none of them" box under the table. **Note for advanced students:** Don't assume every amino acid shown must be found in nature. ## Structures The image presents six chemical structures. Students must identify each as α amino acids or not. Boxes are provided under each structure for selection. 1. **Structure 1:** - Contains: Hydroxyl group (HO), carbonyl group (C=O). - Side chains with methyl groups (CH₃). - Amino group (NH₂) attached. 2. **Structure 2:** - Primary amine group (H₂N) and a single hydroxyl group (OH) are present. - Central carbon with a carboxyl group (COOH). 3. **Structure 3:** - Has an amino group (NH₂) and a carboxyl group (COOH). - Includes a hydroxyl side chain (CH₂OH). 4. **Structure 4:** - Shows a deprotonated hydroxyl group (O⁻) and a protonated amino group (NH₃⁺). - Carbon backbone with carboxyl group. 5. **Structure 5:** - Contains a positively charged amino group (NH₃⁺) and negatively charged carboxyl group (O⁻). - Includes a hydroxyl side chain (CH₂CH₂OH). 6. **Structure 6:** - Similar features as structure 4 but with different side chains. ## Options - A checkbox under each diagram to indicate selected α amino acids. - A checkbox for "none of them" if no structure represents an α amino acid. ### Buttons - **Explanation:** Provides detailed insights into each structure. - **Check:** Validates the selected answers. © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center
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