Biochemistry
9th Edition
ISBN: 9781305961135
Author: Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher: Cengage Learning
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Chapter 12, Problem 24RE
Interpretation Introduction
Interpretation:
The role of the 50S ribosomal subunit in prokaryotic protein synthesis is to be discussed.
Concept introduction:
Protein synthesis needs an initiation complex, which is made up of, at least, eight components. They are mRNA (messenger ribonucleic acid), 30S ribosomal subunits, fmet-tRNAfmet (N-formylmethionine-tRNAfmet), GTP (Guanosine triphosphate), three protein-initiation factors, which are IF-1 (initiation factor-1), IF-2 (initiation factor-2), and IF-3 (initiation factor-3).
The 50S ribosomal subunit and the 30S subunit form the complete 70S ribosome in prokaryotic organisms. The two components of the 50S ribosomal subunit are 5S ribosomal RNA and 23S ribosomal RNA.
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Biochemistry
Ch. 12 - RECALL Prepare a flow chart showing the stages of...Ch. 12 - Prob. 2RECh. 12 - RECALL Define degenerate code.Ch. 12 - RECALL How can the binding assay technique be used...Ch. 12 - RECALL Which nucleotides break the rules of...Ch. 12 - Prob. 6RECh. 12 - Prob. 7RECh. 12 - REFLECT AND APPLY It is possible for the codons...Ch. 12 - Prob. 9RECh. 12 - Prob. 10RE
Ch. 12 - REFLECT AND APPLY How would protein synthesis be...Ch. 12 - REFLECT AND APPLY Comment on the evolutionary...Ch. 12 - Prob. 13RECh. 12 - Prob. 14RECh. 12 - RECALL What is the role of ATP in amino acid...Ch. 12 - Prob. 16RECh. 12 - Prob. 17RECh. 12 - Prob. 18RECh. 12 - REFLECT AND APPLY A friend tells you that she is...Ch. 12 - Prob. 20RECh. 12 - REFLECT AND APPLY Is amino acid activation...Ch. 12 - Prob. 22RECh. 12 - Prob. 23RECh. 12 - Prob. 24RECh. 12 - RECALL What are the A site and the P site? How are...Ch. 12 - Prob. 26RECh. 12 - RECALL Describe the role of the stop signals in...Ch. 12 - Prob. 28RECh. 12 - RECALL What is the ShineDalgarno sequence? What...Ch. 12 - REFLECT AND APPLY You are studying with a friend...Ch. 12 - REFLECT AND APPLY E. coli has two tRNAs for...Ch. 12 - REFLECT AND APPLY In prokaryotic protein...Ch. 12 - REFLECT AND APPLY Describe the recognition process...Ch. 12 - REFLECT AND APPLY The fidelity of protein...Ch. 12 - REFLECT AND APPLY (a) How many activation cycles...Ch. 12 - REFLECT AND APPLY What is the energy cost per...Ch. 12 - Prob. 37RECh. 12 - Prob. 38RECh. 12 - Prob. 39RECh. 12 - Prob. 40RECh. 12 - Prob. 41RECh. 12 - Prob. 42RECh. 12 - Prob. 43RECh. 12 - Prob. 44RECh. 12 - Prob. 45RECh. 12 - Prob. 46RECh. 12 - Prob. 47RECh. 12 - RECALL What are two major similarities between...Ch. 12 - REFLECT AND APPLY Why do amino acids other than...Ch. 12 - REFLECT AND APPLY Would puromycin be useful for...Ch. 12 - Prob. 51RECh. 12 - Prob. 52RECh. 12 - Prob. 53RECh. 12 - Prob. 54RECh. 12 - Prob. 55RECh. 12 - Prob. 56RECh. 12 - REFLECT AND APPLY The amino acid hydroxyproline is...Ch. 12 - Prob. 58RECh. 12 - Prob. 59RECh. 12 - Prob. 60RECh. 12 - Prob. 61RECh. 12 - Prob. 62RECh. 12 - Prob. 63RECh. 12 - Prob. 64RECh. 12 - Prob. 65RECh. 12 - Prob. 66RECh. 12 - Prob. 67RECh. 12 - Prob. 68RECh. 12 - Prob. 69RECh. 12 - Prob. 70RECh. 12 - Prob. 71RECh. 12 - Prob. 72RECh. 12 - Prob. 73RE
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- REFLECT AND APPLY Explain why a 50S ribosomal subunit and a 30S ribosomal subunit combine to form a 70S subunit, instead of an 80S subunit.arrow_forwardREFLECT AND APPLY What is the energy cost per amino acid in prokaryotic protein synthesis? Relate this to low entropy.arrow_forwardREFLECT AND APPLY You are studying with a friend who says that the hydrogen-bonded portions of tRNA play no important role in its function. What is your reply?arrow_forward
- REFLECT AND APPLY What are the advantages of being eukaryotic (as opposed to prokaryotic)?arrow_forwardREFLECT AND APPLY E. coli incorporates deoxyribonucleotides into DNA at a rate of 250 to 1000 bases per second. Using the higher value, translate this into typing speed in words per minute. (Assume five characters per word, using the typing analogy from Question 36.)arrow_forwardREFLECT AND APPLY Why is a trimming process important in converting precursors of tRNA and rRNA to the active forms?arrow_forward
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