Biology > TEST BANKS > Southern Methodist University - BIOL 3350ECB4_QuestionBank_Ch11 (All)

Southern Methodist University - BIOL 3350ECB4_QuestionBank_Ch11

Document Content and Description Below

ESSENTIAL CELL BIOLOGY, FOURTH EDITION CHAPTER 11: MEMBRANE STRUCTURE © 2014 GARLAND SCIENCE PUBLISHING The Lipid Bilayer 11-1 Which of the following phenomena will be observed if a cell’s memb ... rane is pierced? (a) the membrane reseals (b) the membrane collapses (c) a tear is formed (d) the membrane expands 11-2 The plasma membrane serves many functions, many of which depend on the presence of specialized membrane proteins. Which of the following roles of the plasma membrane could still occur if the bilayer were lacking these proteins? (a) intercellular communication (b) selective permeability (c) cellular movement (d) import/export of molecules 11-3 While many prokaryotic cells have a single membrane bilayer, all eukaryotic cells have a complex system of internal membrane-bound compartments. How might it be advantageous for the cell to have these additional compartments? 11-4 Which type of lipids are the most abundant in the plasma membrane? (a) phospholipids (b) glycolipids (c) sterols (d) triacylglycerides 11-5 Indicate whether the following statements are true or false. If a statement is false, explain why it is false. A. Although cholesterol is a hydrophobic molecule, it has a hydrophilic head group like all other membrane lipids. B. Phosphatidylserine is the most abundant type of phospholipid found in cell membranes. C. Glycolipids lack the glycerol component found in phospholipids. D. The highly ordered structure of the lipid bilayer makes its generation and maintenance energetically unfavorable. 11-6 Which of the following membrane lipids does not contain a fatty acid tail? (a) phosphatidylcholine (b) a glycolipid (c) phosphatidylserine (d) cholesterol [Show More]

Last updated: 2 years ago

Preview 1 out of 23 pages

Buy Now

Instant download

We Accept: