Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
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Chapter 6.2, Problem 1EQ
Summary Introduction
To determine: The reason that it is essential to purify individual subunits of RNase P to show that it is a ribozyme.
Introduction: RNase P acts as a catalyst during the processing of transfer RNA (Ribose
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Chapter 6 Solutions
Biology
Ch. 6.1 - Which do you think has more entropy, a NaCl...Ch. 6.1 - Prob. 2CCCh. 6.2 - Prob. 1CCCh. 6.2 - Prob. 2CCCh. 6.2 - Prob. 3CCCh. 6.2 - Prob. 1BCCh. 6.2 - Prob. 1EQCh. 6.2 - Prob. 2EQCh. 6.2 - Prob. 3EQCh. 6.3 - Prob. 1CC
Ch. 6.3 - Prob. 1BCCh. 6.4 - What are advantages of protein degradation?Ch. 6 - Reactions that release free energy are a....Ch. 6 - Enzymes speed up reactions by a. providing...Ch. 6 - Prob. 3TYCh. 6 - Researchers analyzed a cell extracta mixture of...Ch. 6 - In biological systems, ATP functions by a....Ch. 6 - In a chemical reaction, NADH is converted to NAD+...Ch. 6 - Prob. 7TYCh. 6 - Prob. 8TYCh. 6 - Prob. 9TYCh. 6 - Autophagy provides a way for cells to a. degrade...Ch. 6 - Prob. 1CQCh. 6 - Prob. 2CQCh. 6 - Prob. 3CQCh. 6 - Prob. 1COQCh. 6 - Prob. 2COQ
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- Why is RNA polymerase a good name for this enzyme? Explain each part of the name: RNA, polymer and asearrow_forwardThe ribosome can transfer any peptidyl group from the P-site tRNA to any aminoacyl group on the A-site RNA, but the rate may vary with the identities of those groups. Propose an explanation why the ribosome synthesizes poly-Pro sequences extremely slowly compared to other peptide sequences.arrow_forwardBriefly explain the importance of the protein factor EF-Ts in the translation process. Do not simply define the given.arrow_forward
- You are an expert in RNA structural and functional studies and your next big target is to create a new ribozyme with a ubiquitin ligase activity. You are free to look up into web-based sources, textbooks, and your notes to get required inspiration towards this end. You are expected to provide an outline for the steps involved in the ribozyme production process along with the list of materials needed.arrow_forwardExplain the significance of the following statement: The functioning of the aminoacyl-tRNA synthetases is referred to as the second genetic code.arrow_forwardThe antibacterial protein colicin E3 is an effective inhibitor of protein synthesis in bacteria. This protein is a nuclease, specifically attacking a phos- phodiester bond near the 3' end of the 16S RNA. Suggest a mechanism for the effect of colicin E3 on translation.arrow_forward
- briefly explain the importance of the degeneracy of the genetic code in the translation process. do not simply define the givenarrow_forwardExplain why RNase A cannot catalyze the hydrolysis of DNA.arrow_forwardTreating a solution of ribonuclease with 2-mercaptoethanol and urea denatures the enzyme. If the 2-mercaptoethanol is removed, followed by the removal of urea, the ability of the enzyme solution to hydrolyse RNA is reduced by about 99%. What is the most plausible explanation for this observation? a. All of the RNase molecules have about 1% of their usual activity, due to changes to the organisation of disulphide bonds b. Random formation of disulphide bonds mean about 1% of the RNase molecules are 100% active whereas 99% have no activity c. Deprotonation of histidine in the active site of the enzyme means that only about 1% of the enzyme molecules are active d. Deprotonation of histidine in the active site of the enzyme means that all of the enzyme molecules have 1% of their usual activityarrow_forward
- How many RNA POLERASE(s) are found in prokaryotes, name and discuss their functions? proper explanation and diagramarrow_forward"Translation Is More Complex in Eukaryotes " Explain this ?arrow_forwardExplain what would not occur if aminoacyl-tRNA synthatase was mutated and did not function.arrow_forward
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