CAMPBELL BIOL UMD+MASTERBIO ACCESS >BI
10th Edition
ISBN: 9781269920483
Author: Reece
Publisher: PEARSON C
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Chapter 7, Problem 2TYU
According to the fluid mosaic model of membrane structure, proteins of the membrane are mostly
- (A) spread in a continuous layer over the inner and outer surfaces of the membrane.
- (B) confined to the hydrophobic interior of the membrane.
- (C) embedded in a lipid bilayer.
- (D) randomly oriented in the membrane, with no fixed inside-outside polarity.
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According to the fluid mosaic model of membrane structure,proteins of the membrane are mostly(A) spread in a continuous layer over the inner and outersurfaces of the membrane.(B) confined to the hydrophobic interior of the membrane.(C) embedded in a lipid bilayer.(D) randomly oriented in the membrane, with no fixed insideoutside polarity.
Which of the following statements is true of membrane proteins?
a) They are suspended on the surface of the membrane.
b) They are partly embedded in the bilayer
c) They span across the bilayer and project from both sides
d) Any of these are true, depending on the specific membrane protein.
Which statements are consistent with the fluid-mosaic model of membranes? (a) All membrane proteins are bound to the interior of the membrane. (b) Both proteins and lipids undergo transverse (flip-flop) diffusion from the inside to the outside of the membrane. (c) Some proteins and lipids undergo lateral diffusion along the inner or outer surface of the membrane. (d) Carbohydrates are covalently bonded to the outside of the membrane. (e) The term mosaic refers to the arrangement of the lipids alone.
Chapter 7 Solutions
CAMPBELL BIOL UMD+MASTERBIO ACCESS >BI
Ch. 7.1 - VISUAL SKILLS Carbohydrates are attached to...Ch. 7.1 - WHAT IF? How would the membrane lipid composition...Ch. 7.2 - What property allows O2 and CO2 to cross a lipid...Ch. 7.2 - VISUAL SKILLS Examine Figure 7.2. Why is a...Ch. 7.2 - MAKE CONNECTIONS Aquaporins exclude passage of...Ch. 7.3 - How do you think a cell performing cellular...Ch. 7.3 - WHAT IF? If a Paramecium swims from a hypotonic...Ch. 7.4 - Sodium-potassium pumps help nerve cells establish...Ch. 7.4 - VISUAL SKILLS Compare the sodium-potassium pump...Ch. 7.4 - MAKE CONNECTIONS Review the characteristics of...
Ch. 7.5 - As a cell grows, its plasma membrane expands. Does...Ch. 7.5 - DRAW IT Return to Figure 7.9, and circle a patch...Ch. 7.5 - Prob. 3CCCh. 7 - In what ways are membranes crucial to life?Ch. 7 - How do aquaporins affect the permeability of a...Ch. 7 - What happens to a cell placed in a hypertonic...Ch. 7 - ATP is not directly involved in the functioning of...Ch. 7 - Which type of endocytosis involves the binding of...Ch. 7 - In what way do the membranes of a eukaryotic Cell...Ch. 7 - According to the fluid mosaic model of membrane...Ch. 7 - Which of the following factors would tend to...Ch. 7 - Which of the following processes includes all the...Ch. 7 - Prob. 5TYUCh. 7 - DRAW IT An artificial "cell" consisting of an...Ch. 7 - EVOLUTION CONNECTION Paramecium and other...Ch. 7 - Prob. 8TYUCh. 7 - SCIENCE, TECHNOLOGY, AND SOCIETY Extensive...Ch. 7 - WRITE ABOUT A THEME: INTERACTIONS A human...Ch. 7 - SYNTHESIZE YOUR KNOWLEDGE In the supermarket,...
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- Which of the following components of the plasma membrane will help increase fluidity of the memebrane? a) cholesterol b) channel proteins c) phospholipid d) glycoproarrow_forward10(a) Draw or explain the structure of the plasma membrane, 10(b) explain how the plasma membrane is able to be selectively permeable 10(c) How do small, lipid-based molecules move through the membrane? 10(d) How do large or polar molecules move through the membrane?arrow_forwardWhich of the following statements is (are) consistent with what is known about membranes? (a) A membrane consists of a layer of proteins sandwiched between two layers of lipids. (b) The compositions of the inner and outer lipid layers are the same in any individual membrane. (c) Membranes contain glycolipids and glycoproteins. (d) Lipid bilayers are an important component of membranes. (e) Covalent bonding takes place between lipids and proteins in most membranes.arrow_forward
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