The Question is from neet-botany , and it was created by the author B VENKAT

Question

What type of bond links amino acids together in a protein chain?

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
 **Primary Concept**: Peptide bond formation in proteins
 **Related Topics**: Amino acid structure, protein primary structure, peptide synthesis
 **Prerequisites**: Basic understanding of chemical bonds and functional groups.
## SOLUTION PATHWAY
**Given Information**:
  The question asks about the type of bond connecting amino acids in a protein chain.
**Method & Steps**:
 1. Identify the functional groups involved in amino acid linkage.
  Reasoning: Amino acids possess an amino (-NH2) group and a carboxyl (-COOH) group.
  Formula/Rule:  Amino acids form peptide bonds through a condensation reaction.
 2. Describe the peptide bond formation process.
  Working: The carboxyl group of one amino acid reacts with the amino group of another amino acid, releasing a water molecule ($H_2O$) and forming a peptide bond (-CO-NH-).
  Key Point: This is a covalent bond.
 3. Determine the type of bond formed.
  Result: The bond formed between amino acids is a peptide bond.
  Verification: Peptide bonds are characteristic of protein primary structure.
 ## OPTION ANALYSIS
A :x: Glycosidic bonds link monosaccharides in carbohydrates, not amino acids in proteins.
B :x: Hydrogen bonds are weaker interactions that stabilize protein secondary and tertiary structures, but not the primary peptide backbone.
C ✓: Peptide bonds are the covalent bonds that link amino acids together to form polypeptide chains, which are the building blocks of proteins.
D :x: Ionic bonds are electrostatic interactions between charged amino acid side chains, influencing protein tertiary structure, but they do not link the amino acids in the chain.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing peptide bonds with other types of bonds in proteins (e.g., hydrogen bonds, disulfide bonds): Focus on the specific covalent bond formation between the carboxyl and amino groups.
  2.Failing to recognize the condensation reaction involved in peptide bond formation: Remember that water is released during the process.
 **Quick Tips**:
  1.Remember the amide functional group (-CONH-) as the key feature of a peptide bond.
  2.Visualize the condensation reaction between the carboxyl and amino groups to understand peptide bond formation.

B VENKAT · Answer

Glycosidic bond

B VENKAT · Answer

Hydrogen bond

B VENKAT · Answer

The correct Option is "Peptide bond"

B VENKAT · Answer

Ionic bond

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