Question:
The enzyme that catalyzes the peptide bond formation during protein synthesis is:
The enzyme that catalyzes the peptide bond formation during protein synthesis is:
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23s rRNA: peptidyl transferase activity.
Ribozyme (RNA enzyme).
Catalyzes peptide bond formation.
Ribozyme (RNA enzyme).
Catalyzes peptide bond formation.
Updated On: Aug 18, 2026
- 23s rRNA
- Aminoacyl transferase
- Elongation factor EF-Tu
- 16s rRNA
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Peptide bond formation is a key step in protein synthesis.
It is catalyzed by a specific molecule.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the catalyst for peptide bond formation.
Step 3: Detailed Explanation:
Peptide bond formation is catalyzed by the ribosome.
The catalytic activity is due to 23s rRNA (in prokaryotes).
This is a ribozyme activity.
Aminoacyl transferase is not the correct term.
EF-Tu is involved in tRNA binding.
16s rRNA is involved in mRNA binding.
Thus, 23s rRNA catalyzes peptide bond formation.
Step 4: Final Answer:
Peptide bond formation is catalyzed by 23s rRNA.
Hence, the correct option is (A).
Peptide bond formation is a key step in protein synthesis.
It is catalyzed by a specific molecule.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the catalyst for peptide bond formation.
Step 3: Detailed Explanation:
Peptide bond formation is catalyzed by the ribosome.
The catalytic activity is due to 23s rRNA (in prokaryotes).
This is a ribozyme activity.
Aminoacyl transferase is not the correct term.
EF-Tu is involved in tRNA binding.
16s rRNA is involved in mRNA binding.
Thus, 23s rRNA catalyzes peptide bond formation.
Step 4: Final Answer:
Peptide bond formation is catalyzed by 23s rRNA.
Hence, the correct option is (A).
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