CAMPBELL BIOL UMD+MASTERBIO ACCESS >BI
10th Edition
ISBN: 9781269920483
Author: Reece
Publisher: PEARSON C
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Textbook Question
Chapter 7, Problem 1TYU
In what way do the membranes of a eukaryotic
Cell vary?
- (A) Phospholipids are found only in certain membranes.
- (B) Certain proteins are unique to each membrane.
- (C) Only certain membranes of the cell are selectively permeable.
| PRACTICE TEST Goo.gl/CUYGKD |
- (D) Only certain membranes are constructed from amphipathic molecules.
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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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- what purpose does the plasma membrane’s hydrophobic interior serve?arrow_forwardIn addition to providing support, the cytoskeleton immobilizes enzymes and organelles in the cytoplasm. What advantage does this immobilization have over allowing the cellcontents to freely diffuse in the cytoplasm?arrow_forwardWhat structure is usually found in the cell membrane? Is if a. micelle, b. clathrate, c. monolayer or d. bilayer?arrow_forward
- What are the functional significance of the fluidity of a cell membrane?arrow_forwardWhat is the structural and functional difference between the rough and smooth endoplasmic reticulum?arrow_forwardWhich 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.arrow_forward
- If you shift cells from low temperature to high temperature what lipid would you expect to increase in percentage within the membrane? Why would cells increase the percentage of the lipid chosen above when shifted to high temperature but not the other ones?arrow_forwardWhy do these nuclear pores have to be larger in diameter than the channels in the cell’s plasma membrane?arrow_forwardCellular membranes are self-sealing—if they are punctured or disrupted mechanically, they quickly and automatically reseal. What properties ofmembranes are responsible for this important feature?arrow_forward
- The plasma membrane is said to be a fluid-mosaic model because it contains a. waxes suspended within a mosaic of phospholipids.b. a mosaic of proteins suspended within a phospholipid bilayer.c. a polysaccharide mosaic suspended within a protein bilayer.d. a mosaic of phospholipids suspended within a protein bilayer.arrow_forwardSome scientists claim that prokaryotes like bacteria have membrane bound organelles, like chromatophores, anammoxosomes and magnetosomes. What really is the truth because it is widely known that prokaryotes do not have membrane bound organelles. Are these claims true or merely speculative? If this is true, what is the physiological basis for this?arrow_forwardWhat is the basic structure of a biological membrane?arrow_forward
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