Proteins
The peptide bond in proteins is formed by a condensation reaction between:
Select the correct option:
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More biomolecules Practice Questions
When two alpha-amino acids combine to form a dipeptide, the characteristic covalent bond that links ...
When two alpha-amino acids combine to form a dipeptide, the characteristic covalent bond that links ...
Which level of protein structure is maintained primarily by hydrogen bonds between backbone C=O and ...
Which level of protein structure is maintained primarily by hydrogen bonds between backbone C=O and ...
The peptide bond is formed between:
The peptide bond is formed between:
Insulin and glucagon, both secreted by the pancreas, exert opposite effects on the concentration of ...
Insulin and glucagon, both secreted by the pancreas, exert opposite effects on the concentration of ...
A peptide on complete hydrolysis yields glycine, alanine, and valine in equal amounts, and partial h...
A peptide on complete hydrolysis yields glycine, alanine, and valine in equal amounts, and partial h...
Comparing the chemical makeup of RNA with that of DNA reveals two consistent differences in their bu...
Comparing the chemical makeup of RNA with that of DNA reveals two consistent differences in their bu...
A naturally occurring biomolecule is a triester formed from glycerol and three long-chain fatty acid...
A naturally occurring biomolecule is a triester formed from glycerol and three long-chain fatty acid...
Both D-glucose and D-fructose give the same osazone when treated with excess phenylhydrazine, despit...
Both D-glucose and D-fructose give the same osazone when treated with excess phenylhydrazine, despit...
A patient presents with swollen, bleeding gums and slow wound healing, symptoms that historically af...
A patient presents with swollen, bleeding gums and slow wound healing, symptoms that historically af...
A certain alpha-amino acid has a side chain bearing an extra carboxyl group, giving it three ionisab...
A certain alpha-amino acid has a side chain bearing an extra carboxyl group, giving it three ionisab...
In a double-stranded DNA sample, analysis shows that adenine constitutes 30 percent of the total nit...
In a double-stranded DNA sample, analysis shows that adenine constitutes 30 percent of the total nit...
Cooking an egg, adding strong acid to milk, or heating a globular protein all cause the material to ...
Cooking an egg, adding strong acid to milk, or heating a globular protein all cause the material to ...
About This Question
- Subject
- chemistry
- Chapter
- biomolecules
- Topic
- proteins
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
The amino group of one amino acid and the carboxyl group of another
A peptide bond (—CO—NH—) is formed when the α-amino group (—NH₂) of one amino acid reacts with the α-carboxyl group (—COOH) of an adjacent amino acid, releasing one molecule of water (condensation). This amide linkage is the fundamental covalent bond that links amino acid residues in a polypeptide chain.
This easy difficulty chemistry question is from the chapter biomolecules, covering the topic of proteins. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse biomolecules questions on RankGuru.