BROOKER BIOLOGY
5th Edition
ISBN: 9781307656152
Author: BROOKER
Publisher: MCG/CREATE
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Chapter 5.1, Problem 1CS
Core Skill: Modeling The goal of this modeling challenge is to propose a model for a transmembrane protein.
Modeling Challenge: As shown in Figure 5.2, some α helices, which are called transmembrane a helices, may be inserted into the hydrophobic region of a membrane and span the entire membrane. Let’s suppose a protein in the plasma membrane has 5 transmembrane α helices. The loops that connect these 5 transmembrane segments are relatively short, except for the one that connects transmembrane segments 4 and 5, which is longer. The amino end projects into the cytosol. Draw a model of this transmembrane protein in the plasma membrane. In your model, draw the transmembrane a helices as cylinders and label them 1 through 5. Also label the amino and carboxyl ends and the cytosol and extracellular environment.
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Chapter 5 Solutions
BROOKER BIOLOGY
Ch. 5.1 - Core Skill: Modeling The goal of this modeling...Ch. 5.2 - Prob. 1CSCh. 5.3 - Prob. 1CCCh. 5.3 - Prob. 2CCCh. 5.4 - Prob. 1CSCh. 5.4 - Prob. 2CSCh. 5.4 - Lets suppose the inside of a cell has a solute...Ch. 5.5 - What is the purpose of gating?Ch. 5.5 - Prob. 1EQCh. 5.5 - Prob. 2EQ
Ch. 5.5 - Prob. 3EQCh. 5.6 - What is the function of the protein coat?Ch. 5 - Prob. 1TYCh. 5 - Which of the following events can never be...Ch. 5 - Lets suppose an insect, which doesnt maintain a...Ch. 5 - Prob. 4TYCh. 5 - Prob. 5TYCh. 5 - Prob. 6TYCh. 5 - Prob. 7TYCh. 5 - Prob. 8TYCh. 5 - Prob. 9TYCh. 5 - Large particles or large volumes of fluid can be...Ch. 5 - With your textbook closed, draw and describe the...Ch. 5 - Prob. 2CQCh. 5 - Prob. 3CQCh. 5 - Prob. 1COQCh. 5 - With regard to bringing solutes into the cell...
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- Select all that apply. This is an image of a plasma membrane, which consists of two layers of phospholipids. The red bubbles are the hydrophilic heads of phospholipids, facing the cell interior and exterior. The yellow strings facing inside of the plasma membrane are the fatty acid tails. Which of the following bonds/interactions do you think could regulate the assembly of the plasma membrane and the adhesion or fatty acid tails to each other? Select all that apply. hydrogen bonds covalent bonds electrostatic forces van der Waals forces hydrophobic force ionic bonds O O 0 0 O 0arrow_forwardSubject: chemistryarrow_forwardSubject:- Chemistryarrow_forward
- Answer in step by step with explanation. Don't use Ai and chatgpt.arrow_forwardExercise 5 Membrane receptors are proteins that are incorporated in the cytoplasmic membrane of a cell, allowing the detection of specific molecules such as (hormones, growth factor) and triggering a cascade of biochemical Synthesis of protein reactions. The adjacent schema represents the steps of the synthesis of these membrane receptors. 1. Label the structures from a to f. In order to study the biosynthesis and secretion of this protein (membrane receptors), a solution containing radioactive amino acid was injected in the blood of an animal. Samples of certain cells were taken at regular intervals of time. The intensity of radioactivity was measured in different cellular organelles. 2000 The table below represents the variations of the quantity of a membrane protein in different parts of the cell, as function of time. Time (min) 15 40 50 Structure X 26 12 2 1 Structure Z 0. 6. 10 6. Structure Y 0. 10 24 2. Represent the obtained results in the form 3. 3.1. Analyze the obtained…arrow_forwardwhat processes are most likelyoccurring during lag phase, growth phase (i.e., nucleation, elongation) • Describe nucleationarrow_forward
- C. The primary structure is the linear sequence of amino acids linked together in a polymer (determined by the genetic code è mRNA codons). Draw the chemical structure of the primary structure of the SerCys-Lys polymer (with the appropriate covalent bonds) that would result if the ribosome completed the condensation reactions. Clearly label the N- and C- terminus of the polypeptide.arrow_forwardsolve please ..arrow_forwardDescribe critical concentration (Cc)• Describe actin/microtubule polymerization• Contrast “T” and “D” forms of actin and microtubule subunits– Which nucleotide is bound to actin monomers in “T” and “D” forms?– Which nucleotide is bound to microtubule dimers in “T” and “D” forms? – Which subunit form, “T” or “D,” has higher affinity for polymerization? What are the implications of this on Cc(T) and Cc(D)?arrow_forward
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