NEET Exam > NEET Questions > Which of the following important biochemical ... Start Learning for Free
Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?
- a)Repair of DNA
- b)Electron transport chain
- c)Formation of peptide bond
- d)Organization of MTOC during cell division
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which of the following important biochemical reactions in living syste...
In prokaryotes the 23srRNA of the larger subunit of ribsome is a ribozyme that catalyzes peptide bond formation.
Most Upvoted Answer
Which of the following important biochemical reactions in living syste...
Ribozymes: Catalysts of Life
Ribozymes are unique RNA molecules capable of catalyzing biochemical reactions, a role traditionally associated with proteins. The formation of peptide bonds is one of the key reactions facilitated by ribozymes.
Understanding Peptide Bond Formation
- Translation Process: During protein synthesis, ribosomes play a crucial role in linking amino acids together to form proteins.
- Role of rRNA: Ribosomal RNA (rRNA), a component of ribosomes, acts as a ribozyme. It catalyzes the formation of peptide bonds between adjacent amino acids in the growing polypeptide chain.
Mechanism of Action
- Amino Acid Activation: Transfer RNA (tRNA) brings amino acids to the ribosome, where the ribozyme catalyzes the reaction.
- Peptide Bond Formation: The ribozyme facilitates the nucleophilic attack of the amino group of one amino acid on the carbonyl carbon of another, resulting in the formation of a covalent peptide bond.
Significance in Biology
- Evolutionary Perspective: The presence of ribozymes supports the RNA world hypothesis, suggesting that early life forms relied on RNA for both genetic information and catalysis.
- Diversity of Functions: Beyond peptide bond formation, ribozymes are involved in various biological processes, including self-splicing introns and RNA processing.
Conclusion
In summary, the formation of peptide bonds is a crucial biochemical reaction catalyzed by ribozymes, particularly the rRNA in ribosomes. This highlights the versatility of RNA in essential biological functions, underscoring its importance in the molecular machinery of life.
Ribozymes are unique RNA molecules capable of catalyzing biochemical reactions, a role traditionally associated with proteins. The formation of peptide bonds is one of the key reactions facilitated by ribozymes.
Understanding Peptide Bond Formation
- Translation Process: During protein synthesis, ribosomes play a crucial role in linking amino acids together to form proteins.
- Role of rRNA: Ribosomal RNA (rRNA), a component of ribosomes, acts as a ribozyme. It catalyzes the formation of peptide bonds between adjacent amino acids in the growing polypeptide chain.
Mechanism of Action
- Amino Acid Activation: Transfer RNA (tRNA) brings amino acids to the ribosome, where the ribozyme catalyzes the reaction.
- Peptide Bond Formation: The ribozyme facilitates the nucleophilic attack of the amino group of one amino acid on the carbonyl carbon of another, resulting in the formation of a covalent peptide bond.
Significance in Biology
- Evolutionary Perspective: The presence of ribozymes supports the RNA world hypothesis, suggesting that early life forms relied on RNA for both genetic information and catalysis.
- Diversity of Functions: Beyond peptide bond formation, ribozymes are involved in various biological processes, including self-splicing introns and RNA processing.
Conclusion
In summary, the formation of peptide bonds is a crucial biochemical reaction catalyzed by ribozymes, particularly the rRNA in ribosomes. This highlights the versatility of RNA in essential biological functions, underscoring its importance in the molecular machinery of life.
 | Explore Courses for NEET exam |  |
Top Courses for NEETView all
Top Courses for NEET
Question Description
Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer? for NEET 2026 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer?.
Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer? for NEET 2026 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Which of the following important biochemical reactions in living systems is catalyzed by a ribozyme?a)Repair of DNAb)Electron transport chainc)Formation of peptide bondd)Organization of MTOC during cell divisionCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice NEET tests.
| Explore Courses for NEET exam | |
Top Courses for NEET
Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
