**Transcription for Educational Website:**This image presents a multiple-choice question on amino acids related to their protonation at decreasing pH levels.**Amino Acid Structures:**- **A.** - Structure: \(^+\text{H}_3\text{N} - \text{CH} - \text{COO}^-\) - R-group: Side chain with \(\text{CH}_2\), \(\text{CH}_2\), \(\text{CH}_2\), \(\text{CH}_2\), \(^+\text{H}_3\text{N} - \text{CH}_2\)- **B.** - Structure: \(^+\text{H}_3\text{N} - \text{CH} - \text{COO}^-\) - R-group: Side chain with \(\text{CH}_2\), \(\text{CH}_2\), \(\text{COO}^-\) - **C.** - Structure: \(^+\text{H}_3\text{N} - \text{CH} - \text{COO}^-\) - R-group: Side chain with \(\text{CH}_2\), \(\text{OH}\)- **D.** - Structure: \(^+\text{H}_3\text{N} - \text{CH} - \text{COO}^-\) - R-group: Side chain with \(\text{H}_3\text{C - C}\text{H}_3\)**Question:**"If the pH decreases enough, this amino acid will become protonated and could contribute to the denaturation of the protein."**Answer Options:**- ⃝ amino acid C- ⃝ amino acid D- ⃝ amino acid E- ⦿ amino acid B (correct answer)- ⃝ amino acid A**Explanation:**When the pH of a solution decreases, it becomes more acidic, leading amino acids with acidic side chains, like the one in option B (\(\text{COO}^-\)), to accept protons (\(\text{H}^+\)) and become protonated.This protonation can potentially disrupt intramolecular interactions, leading to the denaturation of proteins.

+H₂N-CH-COO™ I CH₂ 1 CH₂ 1 CH₂ I +H₂N-CH₂ A. O amino acid C O amino acid D O amino acid E amino acid B +H₂N-CH-COO™ O amino acid A B. If the pH decreases enough, this amino acid will become protonated and could contribute to the denaturation of the protein. +H₂N-CH-COO™ 1 CH₂ I OH C. +H₂N-CH-COO™ CH H₂C CH3 D.

+H₂N-CH-COO™ I CH₂ 1 CH₂ 1 CH₂ I +H₂N-CH₂ A. O amino acid C O amino acid D O amino acid E amino acid B +H₂N-CH-COO™ O amino acid A B. If the pH decreases enough, this amino acid will become protonated and could contribute to the denaturation of the protein. +H₂N-CH-COO™ 1 CH₂ I OH C. +H₂N-CH-COO™ CH H₂C CH3 D.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter9: Gene Expression And Gene Regulation

Section: Chapter Questions

Problem 19QP: Below is the structure of glycine. Draw a tripeptide composed exclusively of glycine. Label the...

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