Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 11.5, Problem 1BC
Summary Introduction
To analyze:
The proteins that require SRP to reach their proper location and also describe the protein that does not require SRP to reach their location.
Introduction:
The translation is the process in which ribosomes present in endoplasmic reticulum or cytoplasm synthesize proteins . Different proteins synthesized by ribosomes must be sent to different parts of a eukaryotic cell, or sometimes exported from the cell to extracellular space.
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a) What is the role of the lysosome in degrading proteins? What are the enzymes that
degrade/hydrolyze proteins? How does the further degradation of amino acids occur?
Ribosomes in the cytoplasm (cytosol) capture mRNA that can be translated into an enzyme (in this case a protease) to the lysosome. a) Describe what happens from the time the enzyme (protease) begins to form in the cytoplasm until it end up in the lysosome and explain how the enzyme is transported to the lysosome, Explain in terms of the clathrin and thethering proteins
Please use Transferrin receptor as an example of the protein whose pathway is being traced. If it is easier or possible, can there be a labeled drawing to explain.
Chapter 11 Solutions
Principles of Biology
Ch. 11.1 - Which of these binding interactions might be...Ch. 11.1 - Prob. 1TYKCh. 11.1 - When an ncRNA functions as a decoy, it contains...Ch. 11.2 - Prob. 1BCCh. 11.2 - Prob. 1CCCh. 11.2 - Prob. 1TYKCh. 11.3 - Prob. 1CCCh. 11.3 - Prob. 1TYKCh. 11.4 - Explain why RISC binds to a specific mRNA. What...Ch. 11.4 - The process of RNA interference may lead to the...
Ch. 11.4 - To catalyze the methylation of an rRNA, a snoRNA...Ch. 11.5 - Prob. 1BCCh. 11.5 - Prob. 1TYKCh. 11.6 - Prob. 1CCCh. 11.6 - Which of the following components are needed for...Ch. 11.6 - Prob. 2TYKCh. 11.7 - Prob. 1TYKCh. 11 - Which of the following types of molecules could...Ch. 11 - Prob. 2TYCh. 11 - Prob. 3TYCh. 11 - Prob. 4TYCh. 11 - Prob. 5TYCh. 11 - Prob. 6TYCh. 11 - Prob. 7TYCh. 11 - Prob. 8TYCh. 11 - Prob. 9TYCh. 11 - Prob. 10TYCh. 11 - An ncRNA may have the following funtions:...Ch. 11 - Prob. 2CCQCh. 11 - Prob. 3CCQCh. 11 - Review the concept of an RNA world described in...Ch. 11 - Prob. 2CBQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Consider the amino acids on the image below. Which of the following amino acids would be most likely to be found in the part of an integral membrane protein that is located within the membrane? (Select all answers that apply.) Asparagine (Asn) Lysine (Lys) Phenylalanine (Phe) Valine (Val) Glutamic acid (Glu) Methionine (Met)arrow_forwardProtein structure and function: a) Name two common post-translational modifications of proteins in the cell that will affect their structure/function. b) What are prions? Briefly describe their structure and function. C) Explain the principles of protein folding and significance of urea and Bmercaptoethanol in the experimental procedures addressing this question.arrow_forwardWhat is the result of too much Antp protein?arrow_forward
- Refer to the given figure below. Peptide and protein synthesis in the body occurs at the ribosome. In the molecular level, what happens is the reaction between the carboxyl moiety of one amino acid (BLUE), and the amino moiety of another amino acid (RED). What is the role of the blue amino acid in the reaction? R1 LOH + H2N. R2 - HOH НОН R1 R2 Brønsted acid Brønsted base Electrophile Nucleophile Radical IZ ZI ZIarrow_forwardSome antimicrobial drugs used to treat bacterial infections disrupt the process of protein synthesis. What could these drugs target? Why would this ultimately lead to cell death?arrow_forwardDescribe how a carrier protein functions. What role do carrier proteins serve in the cell? Why are they necessary? Where might you find a carrier protein?arrow_forward
- Ribosomes in the cytoplasm capture mRNA that can be translated into an enzyme for the lysosome. a) Explain what happens from the time the enzyme begins to form in the cytoplasm until it ends up in the lysosome and also explains how the enzyme is transported to the lysosome?arrow_forwardWhich of the conformations illustrated above (a or b) is more likely PrPc (the normal cellular form of PrP) and which is more likely PrPSc (the pathogenic form of PrP)? Why?arrow_forwardFor each of the following, describe the path the protein takes to its final destination in the cell.Drawings are strongly recommended!Proteins: 1) Hedgehog (released from the signaling cell), 2) Smoothened, 3) Ci/GliYour answers should include the following if they apply for each protein:o Sorting sequences and how the protein knows where to go at each step (what recognizesdifferent sorting sequences/tags)o How/when the protein is inserted into the membrane (if it is a membrane protein)o What organelles the protein passes through on its way to its final destinationo How the protein is transported (vesicles? translocons? etc.), including a role for microtubuleso How the protein might be modified in each organelle it passes througho What other proteins are involved in transport and how the system is reset to allow for otherproteins to be transportedarrow_forward
- The figure above shows the organization of a protein that will eventually reside in the plasma membrane. The boxes labeled 1 and 2 represent membrane-spanning sequences and the arrow represents a site of action of signal peptidase. Which of the following statements must be TRUE about this protein? O a) Most of this protein will project from the cytosolic side of the membrane. O b) The mature version of this protein will span the membrane twice. c) This is a multi-pass membrane protein. O d) The mature version of this protein will span the membrane once.arrow_forwardYou genetically engineered a cell to no longer contain the extracellular domain of an integrin. What is the most likely effect of losing this domain on the cell's ability to bind? A It would affect the cell's ability to attach to the ECM. B It would have no effect on the cell's ability to attach to anything. C It would affect the cell's ability to attach to the cytoskeleton through adaptor proteins. D It would affect both the cell's ability to attach to other cells and the cell's ability to attach to the cytoskeleton.arrow_forwardFor each of the following, describe the path the protein takes to its final destination in the cell.Drawings are strongly recommended! If you need more space, you can use a separate sheet ofpaper. Proteins: 1) Hedgehog (released from the signaling cell), 2) Smoothened, 3) Ci/GliYour answers should include the following if they apply for each protein:o Sorting sequences and how the protein knows where to go at each step (what recognizesdifferent sorting sequences/tags). How/when the protein is inserted into the membrane (if it is a membrane protein) What organelles the protein passes through on its way to its final destination. How the protein is transported (vesicles? translocons? etc.), including a role for microtubules.How the protein might be modified in each organelle it passes through. What other proteins are involved in transport and how the system is reset to allow for otherproteins to be transported.arrow_forward
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