Why does heat denature a protein? *17) Draw a dipeptide composed of glycine and alanine. puide 18) Draw a general sketch of an alpha-helix and a beta-sheet. What 19

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**Educational Website Transcription**

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### Protein Structure and Heat Denaturation

**16) Why does heat denature a protein?**

*Heat can disrupt the hydrogen bonds, ionic bonds, and other forces that maintain the protein's three-dimensional structure, causing it to unfold and lose its functional shape.*

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### Peptide and Protein Structure

**17) Draw a dipeptide composed of glycine and alanine.**

*A dipeptide consists of two amino acids linked by a single peptide bond. Glycine and alanine can be represented with their chemical structures, showing the connection between the amino group of glycine and the carboxyl group of alanine.*

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### Protein Secondary Structures

**18) Draw a general sketch of an alpha-helix and a beta-sheet.**

*An alpha-helix is a right-handed coil, formed by hydrogen bonds between every fourth amino acid. A beta-sheet consists of beta strands connected laterally by at least two or three backbone hydrogen bonds, forming a sheet-like structure.*
Transcribed Image Text:**Educational Website Transcription** --- ### Protein Structure and Heat Denaturation **16) Why does heat denature a protein?** *Heat can disrupt the hydrogen bonds, ionic bonds, and other forces that maintain the protein's three-dimensional structure, causing it to unfold and lose its functional shape.* --- ### Peptide and Protein Structure **17) Draw a dipeptide composed of glycine and alanine.** *A dipeptide consists of two amino acids linked by a single peptide bond. Glycine and alanine can be represented with their chemical structures, showing the connection between the amino group of glycine and the carboxyl group of alanine.* --- ### Protein Secondary Structures **18) Draw a general sketch of an alpha-helix and a beta-sheet.** *An alpha-helix is a right-handed coil, formed by hydrogen bonds between every fourth amino acid. A beta-sheet consists of beta strands connected laterally by at least two or three backbone hydrogen bonds, forming a sheet-like structure.*
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