Cell Membrane and Bloom S Category

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Test File to accompany Life: The Science of Biology, Ninth Edition Sadava • Hillis • Heller • Berenbaum Chapter 6: Cell Membranes TEST FILE QUESTIONS (By Catherine Ueckert) Multiple Choice 1. The compounds in biological membranes that form a barrier to the movement of hydrophilic materials across the membrane are a. integral membrane proteins. b. carbohydrates. c. lipids. d. nucleic acids. e. peripheral membrane proteins. Answer: c Textbook Reference: 6.1 What Is the Structure of a Biological Membrane? Page: 106 Bloom’s Category: 1. Remembering 2. The plasma membrane of animals contains carbohydrates a. on the inner side of the membrane, facing the cytosol. b. on the outer side of the membrane, protruding…show more content…
Analyzing 13. When vesicles from the Golgi apparatus deliver their contents to the exterior of the cell, they add their membranes to the existing plasma membrane. This is made possible by a. the capacity of lipids to associate with one another. b. the fact that saturated fatty acid chains allow for close packing of fatty acids in the bilayer. c. the great affinity cholesterol molecules in the plasma membrane have for fatty acid tails. d. the polar proteins’ affinity for fatty acids. e. the noncovalent interactions of the anchored membrane proteins. Answer: a Textbook Reference: 6.1: What Is the Structure of a Biological Membrane? Page: 108 Bloom’s Category: 2. Understanding 14. Which of the following is not one of the functional roles of membrane proteins? a. Allowing movement of molecules that otherwise would be excluded by the lipid components of the membrane b. Transferring signals from outside the cell to inside the cell c. Maintaining the shape of the cell d. Facilitating the transport of macromolecules across the membrane e. Stabilizing the lipid bilayer Answer: e Textbook Reference: 6.1 What Is the Structure of a Biological Membrane? Page: 108–109 Bloom’s Category: 2. Understanding 15. A protein that forms an ion channel through a membrane is most likely to be a. a peripheral protein. b. a transmembrane protein. c. a phospholipid. d. an enzyme. e. entirely outside the phospholipid bilayer. Answer: b Textbook Reference: 6.1

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