Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 2, Problem 69TQ
Summary Introduction
To review:
The advantages of immobilizing property of cytoskeleton.
Introduction:
The cytoskeleton is a complex network of tubules and filaments, which are interlinked together and extending to cytoplasm from nucleus and cell membrane. The cytoskeleton consists of threemajor components: microfilaments, also known as actin filaments; intermediate filaments; and microtubules.
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Chapter 2 Solutions
Biochemistry: The Molecular Basis of Life
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- There are two types of prokaryotes: bacteria and____________________.arrow_forward_____________ is a polymeric network in the prokaryotic cell wall in which short peptide chains are linked to carbohydrate chains.arrow_forward_____________ pathways can function in both anabolic and catabolic processes.arrow_forward
- __________ and_______________ are two granular organelles (enzyme complexes) that, respectively, synthesize and degrade proteins.arrow_forwardQuestion 16 is an irreversible competitive inhibitor of bacterial beta-lactamase. O clavulanic acid sulfamethoxazole O trimethoprim O rifampinarrow_forwardQuestion 21 There are no aminoacyl-tRNAs that will go to the A site of the ribosome when UGA is the codon. A) True B) Falsearrow_forward
- Question 17 The genetic code in unambigous that means many codons can code for the same amino acids. A True B) Falsearrow_forwardQUESTION 49 Which step is thought to have occurred, according to endosymbiotic theory? O a. Inward folds of the plasma membrane of prokaryotes. O b. An independent prokaryotic cell was engulfed by a dependent prokaryotic cell, allowing the dependent host cell to survive with the help of the engulfed cell. O c. An independent prokaryotic cell was engulfed by another independent prokaryotic cell, after which the engulfed cell lost certain functions and became dependent on the host cell. O d. A dependent prokaryotic cell was engulfed by an independent prokaryotic cell, allowing the dependent cell to survive within the independent host cell. O e. A dependent prokaryotic cell was engulfed by another dependent prokaryotic cell, allowing each cell to survive with the help of the other.arrow_forwardThe cell membrane contains certain pores in it. This allows only a few substances to pass through the cell membrane. This property is called _________________.arrow_forward
- Question #2 To isolate DNA from cells, you must disrupt the cell Therefore, you treated your cells with a lysis buffer that contains a detergent. You also heated the cells and vortexed them during this time. What chemical property does the detergent in the lysis buffer have that helps disrupt a cell membrane? Briefly explain your answer. How does vortexing and heating your samples aid in disrupting the membrane?arrow_forwardQUESTION 49 Match the terms on the left with its description or definition on the right. There is only one answer for each item. v Ribosome A. Separates the intracellular components from the extracellular space v Chloroplast v Lysosome B. Houses the genetic material v Vacuole C. Translates messenger RNAS into proteins v Golgi apparatus D. Provides rigidity and protects the cell from its environment E. Stores lipids, assists in movement of newly synthesized proteins and houses important enzymes F. Contains the instructions for making proteins G. Digest foreign materials and unwanted organelles in the cytoplasm H. Packages and processes proteins and lipids for transport to designated locations in the cell 1. Carries out photosynthesis to produce energy for the cell J. Provide storage space for food and water Click Save and Submit to şave and submit. Click Save All Answers to save all answers. Gparrow_forwardQUESTION NO. 1 Cystic fibrosis is a frequent generic disease of Caucasians. The CF gene codes for a protein called the cystic fibrosis transmembrane conductance regulator (CFTR) which functions as a cAMP-regulated chloride channel. The protein has two membrane-spanning domains, two domains that interact with ATP, and one regulatory domain. The most common defect is in the gene for one of the ATP binding domains. The result is a protein that does not fold correctly in the endoplasmic reticulum, is not properly glycosylated, and is nor transported to the cell surface. Rather, it is degraded in the cytosol within proteasomes. Drugs that foster chaperone interaction with the mutant protein are a potential therapeutic approach. Chaperones A. are always required to direct the folding of proteins. B. when bound to protein increase the rate of protein degradation. C. usually bind to strongly hydrophilic regions of unfolded proteins. D. sometimes maintain proteins in an…arrow_forward
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