Modified Mastering Biology With Pearson Etext -- Standalone Access Card -- For Biological Science (7th Edition)
7th Edition
ISBN: 9780135276556
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 4TYK
Integral membrane proteins are anchored in lipid bilayers. Which of the following groups of amino acid residues (see Figure 3.2) would likely be found in the portion that crosses the lipid bilayer?
a. acidic
b. basic
c. polar uncharged
d. nonpolar
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b) Cellular membranes are generally found in environments that contain lots of water. Draw a
diagram of what the phospholipid bilayer of a plasma membrane would look like if it were placed
in a hydrophobic environment. (**Note that you only have to draw the phospholipid bilayer, you
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c) What part or parts of a cellular membrane play(s) a role in determining the fluidity of the
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from a patient. However, she must first treat the tumour with a solution affects a membrane
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Type of…
b) Cellular membranes are generally found in environments that contain lots of water. Draw a
diagram of what the phospholipid bilayer of a plasma membrane would look like if it were placed
in a hydrophobic environment. (**Note that you only have to draw the phospholipid bilayer, you
don't have to draw the other major components again as you did in part a)
c) What part or parts of a cellular membrane play(s) a role in determining the fluidity of the
membrane?
8) Indicate which of the five major types of membrane protein (adhesion, enzymatic, reco
receptor, and transport) is most likely to be involved in each of the situations described be
a) An oncologist wants to study the cells from a certain tumour that has been surgically re
from a patient. However, she must first treat the tumour with a solution affects a membra
protein on the tumour cells. Because of the effect of the solution on the membrane protei
tumour tissue falls apart into individual cells.
Type of membrane protein: ans…
Integral membrane proteins are anchored in lipid bilayers. Which of the following
groups of amino acid residues would likely be found in the portion that crosses the
lipid bilayer?
Nonpolar
Polar
Acidic
Charged
Chapter 6 Solutions
Modified Mastering Biology With Pearson Etext -- Standalone Access Card -- For Biological Science (7th Edition)
Ch. 6 - 1. How do the phospholipids in archaea differ from...Ch. 6 - If a solution surrounding a cell is hypertonic...Ch. 6 - Prob. 3TYKCh. 6 - 4. Integral membrane proteins are anchored in...Ch. 6 - 5. Cooking oil lipids consist of long, unsaturated...Ch. 6 - Prob. 6TYUCh. 6 - 7. In terms of structure, how do channel proteins...Ch. 6 - 9. PROCESS OF SCIENCE In an experiment, you create...Ch. 6 - Prob. 11PIATCh. 6 - Prob. 12PIAT
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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
- Explain how the amphipathic (containing both hydrophobic and hydrophilic sides) protein (shown; left)would be anchored in the phospholipid bilayer (shown; right); which portion do you predict would besticking out towards the water? Which portion would be hiding inside the membrane?arrow_forward1. Integral and peripheral membrane proteins employ multiple strategies to keep them associated to a biological membrane. View these three proteins below, and for each protein shown, answer the following questions: A) What type of membrane protein is this? Integral, peripheral, monotopic, polytopic? How do you know? Justify your label by features of the protein shown in the image. B) Describe the overall tertiary structure of each protein. Be certain to mention hydrophilicity/hydrophobicity of the surfaces of this protein. C) Provide a detailed description of how each protein is held associated to the biological membrane. Protein 2 Protein 3 Protein 1 "H,N. Exterior Cytosolarrow_forwardDrawn below is a schematic of a transmembrane protein. Extracellular Cell membrane Cytosolic side (a) From the list below, select the amino acid(s) that might by more common in the extracellular domain of this membrane protein and whose side- chain can form hydrogen bonds with the surrounding water molecules. Explain why you selected this option(s). Lysine Serine Phenylalanine Methionine (b) From the list below, select the amino acid(s) that would likely be found in the transmembrane/ membrane spanning domain of this protein and whose side- chain interacts with the lipid bilayer. Lysine Serine Phenylalanine Methioninearrow_forward
- Drawn below is a schematic of a transmembrane protein. Extracellular Cell membrane Cytosolic side (a) When this transmembrane protein is embedded in the lipid bilayer, what is the highest order of structure (choose from primary, secondary, tertiary and quaternary) of this protein? Explain why you selected this option.arrow_forwardDescribe the properties of the three classes of membrane proteins (integral, peripheral, and lipid-anchored) along: A. differences from each other B. variation among themselvesarrow_forwardBiological membranes are critical components of cells that allow compartmentalisation of cellular contents. The diagram shows a biological membrane comprised of a lipid bilayer with a single polypeptide integrated into the membrane and spanning the membrane seven times. What types of amino acids are likely present in the parts of the polypeptide chain labelled 1-7 and in the parts of labelled A-G? What is the name of the effect that forces the polypeptide to arrange itself like this within the lipid bilayer? Give an example of a type of molecule that can move freely across the lipid bilayer and explain why it can do so based on its chemical properties.arrow_forward
- Define the following terms: a. lipid bilayer b. fluid mosaic model c. membrane fluidity d. flippase e. floppasearrow_forwardIn the figure below, an integral membrane protein is shown. These proteins sit inside of cell membranes. Some integral proteins are membrane channels or transporters, while others serve as enzymes, receptors, or anchors. Describe the differences you would expect to see in the amino acid side chains on the outer surface of an integral cell membrane protein, as compared to a water-soluble globular protein. Be sure to discuss the chemical nature of the cell membrane in your answer.arrow_forwardBiological membranes are critical components of cells that allow compartmentalisation of cellular contents. The diagram shows a biological membrane comprised of a lipid bilayer with a single polypeptide integrated into the membrane and spanning the membrane seven times. What is the name of the specific type of lipid comprising the bilayer shown above? What properties about the heads and tails of these lipid structures force them to be arranged as they are in the lipid bilayer?arrow_forward
- 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_forwardThe plasma membrane of E. coli is about 75% protein and 25% phospholipid by weight. How many molecules of membrane lipid are present for each molecule of membrane protein? Assume an average protein Mr of 50,000and an average phospholipid Mr of 750. What more would you need to know to estimate the fraction of the membrane surface that is covered by lipids?arrow_forwardWhat is the primary characteristic of peripheral membrane proteins? A: They cannot be post-translationally modified. B: They span the entire lipid bilayer, sometimes multiple times. C: Detergents or nonpolar solvents are necessary to remove them from the lipid bilayer. D:Weak intermolecular forces keep them attached to the lipid membrane.arrow_forward
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