Homework Answers
Ans) The correct answer is "A" i.e Ribosome
(Ribosome has an enzyme known as Peptidyl transferase which is responsible for the formation of peptide bond between the amino acid in the P site and the amino acid in the A site. This process does not require energy. Thus,option "C" is incorrect.However the process of translocation (ribosome moves one codon ahead) requires GTP which is catalyzed by EF-G.
Option "D" is incorrect because RNA polymerase does not take part in translation.RNA polymerase works only in the transcription process.
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During translation, the formation of peptide bonds between amino acids is catalyzed by... ribosome tRNA GTP...
Formation of a peptide (a polymer) from amino acids (monomers) requires input of energy. Select all...
Formation of a peptide (a polymer) from amino acids (monomers) requires input of energy. Select all of the processes that contribute energy to amino acid polymeration. 1 tRNA charging by aminoacyl-tRNA synthetases 2 Release and further hydrolysis of PPi when the phosphodiester bond is formed 3 kinetic energy from the motion of the ribosome 4 catalysis by RNA in the large subunit of the ribosome 5 GTP hydrolysis by elongation factors eEF1A and eEF2
Which is correct about the peptide elongation by ribosome? Select one: a. Addition of a new...
Which is correct about the peptide elongation by ribosome? Select one: a. Addition of a new amino acid is achieved by peptide transfer from the A site tRNA to the P site tRNA. b. Translation is not affected by the cellular availability of GTP. c. Peptide bond formation is catalyzed by enzymatic proteins in ribosome. d. The peptide bond is formed by a nucleophilic attack of the A-site NH2- onto the P-site -COOH. e. None of these
Place the following steps of TRANSLATION in the correct order for EUKARYOTES. The ribosome reaches a...
Place the following steps of TRANSLATION in the correct order for EUKARYOTES. The ribosome reaches a stop codon. A release factor binds and causes the release of the new polypeptide, along with the mRNA. The ribosome dissociates. v Acharged tRNA with a matching anticodon binds the mRNA codon in the A site. ✓ The ribosome moves exactly 3 nucleotides toward the 3* end of the mRNA. The small ribosomal subunit uses rRNA to bind to the Kozak sequence, which places...
42. Which is correct about the peptide elongation by ribosome? Select one: a. Addition of a...
42. Which is correct about the peptide elongation by ribosome? Select one: a. Addition of a new amino acid is achieved by peptide transfer from the A site tRNA to the P site URNA. b. Translation is not affected by the cellular availability of GTP. O c. Peptide bond formation is catalyzed by enzymatic proteins in ribosome. O d. The peptide bond is formed by a nucleophilic attack of the A-site NH2- onto the P-site -COOH. O e. None of...
1. The ribosome is important for catalyzing the formation of peptide bonds. Which of the following...
1. The ribosome is important for catalyzing the formation of peptide bonds. Which of the following statements is true? (a) The number of rRNA molecules that make up a ribosome greatly exceeds the number of protein molecules found in the ribosome. (b) The large subunit of the ribosome is important for binding to the mRNA. (c) The catalytic site for peptide bond formation is formed primarily from an rRNA. (d) Once the large and small subunits of the ribosome assemble,...
Polymerization of amino acids into a polypeptide requires energy. In terms of chemical thermodynamics, the chemical...
Polymerization of amino acids into a polypeptide requires energy. In terms of chemical thermodynamics, the chemical energy for peptide bond formation in translation technically comes from: hydrolysis of GTP hydrolysis of ATP translocation of the ribosome as it moves along the mRNA ribosomal RNA (rRNA) secondary structure transcription of the mRNA that is being translated Transfer RNA (tRNA) is a ribonucleic acid about 50-60 nucleotides long. When a tRNA gets "charged" by covalent addition of its cognate amino acid, to...
Question • Peptide bonds form between ________. • A) amino acids • B) an mRNA codon...
Question • Peptide bonds form between ________. • A) amino acids • B) an mRNA codon and a tRNA anticodon • C) a tRNA and the amino acid it is carrying • D) an mRNA transcript and the small ribosomal subunit
Match the following choices to the questions below. UUU catalyzes translocation of the ribosome involved in...
Match the following choices to the questions below. UUU catalyzes translocation of the ribosome involved in transcription associated with the binding of mRNA in the ribosome binds to Shine-Dalgarno sequence involved in replication contains information in the form of anticodons catalyzes the formation of amino acid-AMP AUG UAG binds to pribnow box catalyzes formation of peptide bonds catalyzes disassembly of the translation complex associated with the binding of tRNA in the ribosome catalyzes disassembly of the transcription complex start codon...
During the ‘elongation’ stage of translation, after the arrival of each new tRNA: A. the amino...
During the ‘elongation’ stage of translation, after the arrival of each new tRNA: A. the amino acid is ‘passed’ from the tRNA in the A site to the tRNA in the P site. B. newly arriving tRNAs must first bind to the E-site. C. the peptide is ‘passed’ from the tRNA in the P site to the tRNA in the A site. D. the new tRNA must first bind to the P-site of the ribosome Hi, i need help with...
6. All of the following statements about tRNAs are true EXCEPT: O A tRNA may use...
6. All of the following statements about tRNAs are true EXCEPT: O A tRNA may use non-conventional base-pairing to bind to the codon. O A TRNA cannot fully enter the ribosome until it is released by the elongation factor. O A tRNA brings the correct amino acid for the corresponding codon in the mRNA during translation. O A tRNA catalyzes the formation of the peptide bond between amino acids.
Place the following steps of TRANSLATION in the correct order for EUKARYOTES. The ribosome reaches a stop codon. A release factor binds and causes the release of the new polypeptide, along with the mRNA. The ribosome dissociates. v Acharged tRNA with a matching anticodon binds the mRNA codon in the A site. ✓ The ribosome moves exactly 3 nucleotides toward the 3* end of the mRNA. The small ribosomal subunit uses rRNA to bind to the Kozak sequence, which places...
42. Which is correct about the peptide elongation by ribosome? Select one: a. Addition of a new amino acid is achieved by peptide transfer from the A site tRNA to the P site URNA. b. Translation is not affected by the cellular availability of GTP. O c. Peptide bond formation is catalyzed by enzymatic proteins in ribosome. O d. The peptide bond is formed by a nucleophilic attack of the A-site NH2- onto the P-site -COOH. O e. None of...
Polymerization of amino acids into a polypeptide requires energy. In terms of chemical thermodynamics, the chemical energy for peptide bond formation in translation technically comes from: hydrolysis of GTP hydrolysis of ATP translocation of the ribosome as it moves along the mRNA ribosomal RNA (rRNA) secondary structure transcription of the mRNA that is being translated Transfer RNA (tRNA) is a ribonucleic acid about 50-60 nucleotides long. When a tRNA gets "charged" by covalent addition of its cognate amino acid, to...
Match the following choices to the questions below. UUU catalyzes translocation of the ribosome involved in transcription associated with the binding of mRNA in the ribosome binds to Shine-Dalgarno sequence involved in replication contains information in the form of anticodons catalyzes the formation of amino acid-AMP AUG UAG binds to pribnow box catalyzes formation of peptide bonds catalyzes disassembly of the translation complex associated with the binding of tRNA in the ribosome catalyzes disassembly of the transcription complex start codon...
6. All of the following statements about tRNAs are true EXCEPT: O A tRNA may use non-conventional base-pairing to bind to the codon. O A TRNA cannot fully enter the ribosome until it is released by the elongation factor. O A tRNA brings the correct amino acid for the corresponding codon in the mRNA during translation. O A tRNA catalyzes the formation of the peptide bond between amino acids.
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