Peptide bond is formed between:-
**Core Concept**
The peptide bond is a covalent bond formed between two amino acids during protein synthesis, joining them together to form a polypeptide chain. This process is crucial in the formation of proteins, which are essential for various cellular functions.
**Why the Correct Answer is Right**
The peptide bond is formed between the carboxyl group (-COOH) of one amino acid and the amino group (-NH2) of another amino acid. This reaction is known as a condensation reaction, where a water molecule is released as a byproduct. The resulting bond is a amide bond, which is a strong covalent bond that links the amino acids together. The enzyme responsible for this reaction is peptidyl transferase, which is a ribozyme present in the ribosome.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not mentioned as a correct answer in the context of peptide bond formation.
**Option B:** This option is not relevant to the formation of peptide bonds.
**Option C:** This option is not correct as peptide bond is not formed between the mentioned groups.
**Clinical Pearl / High-Yield Fact**
The peptide bond is a crucial step in protein synthesis, and any defect in this process can lead to various diseases, such as genetic disorders or cancer. Understanding the mechanism of peptide bond formation is essential for researchers and clinicians working in the field of molecular biology and medicine.
**Correct Answer: A. Carboxyl group (-COOH) of one amino acid and the amino group (-NH2) of another amino acid.**