BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
12th Edition
ISBN: 9781264058167
Author: Raven
Publisher: MCG CUSTOM
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Textbook Question
Chapter 5, Problem 2U
What chemical property characterizes the interior of the phospholipid bilayer?
a. It is hydrophobic.
b. It is hydrophilic.
c. It is polar.
d. It is saturated.
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In the plasma membrane, form(s) the lipid bilayer,determine(s) the fluid nature of the membrane, andmainly determine(s) the function of the membrane.a. phospholipids, cholesterol, proteinsb. phospholipids, proteins, cholesterolc. proteins, cholesterol, phospholipidsd. cholesterol, phospholipids, proteinse. cholesterol, proteins, phospholipids
Draw the different spontaneously formed lipid structures:
a. Monolayers and bilayers
b. Micelles
C. Unilamellar vesicle
d. Multilamellar vesicles
Decide whether each of the following molecules will pass through a lipid bilayer. If the molecule will pass through, type yes it will. If the molecule will not pass through, type no it will not.
a. Glucose
b. Glycerol
C.water
D. Oxygen gas
Chapter 5 Solutions
BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
Ch. 5.1 - Prob. 1LOCh. 5.1 - Explain the fluid mosaic model of membrane...Ch. 5.2 - List the different components of phospholipids.Ch. 5.2 - Prob. 2LOCh. 5.2 - Prob. 3LOCh. 5.3 - Illustrate the functions of membrane proteins.Ch. 5.3 - Prob. 2LOCh. 5.3 - Prob. 3LOCh. 5.4 - Compare simple diffusion and facilitated...Ch. 5.4 - Prob. 2LO
Ch. 5.4 - Prob. 3LOCh. 5.5 - Prob. 1LOCh. 5.5 - Prob. 2LOCh. 5.5 - Prob. 3LOCh. 5.6 - Distinguish between endocytosis and exocytosis.Ch. 5.6 - Illustrate how endocytosis can be specific.Ch. 5 - According to the fluid mosaic model, membranes are...Ch. 5 - Prob. 2IQCh. 5 - The fluid mosaic model of the membrane describes...Ch. 5 - What chemical property characterizes the interior...Ch. 5 - The transmembrane domain of an integral membrane...Ch. 5 - The specific function of a membrane within a cell...Ch. 5 - The movement of water across a membrane is...Ch. 5 - Prob. 6UCh. 5 - Which of the following is NOT a mechanism for...Ch. 5 - A bacterial cell that can alter the composition of...Ch. 5 - What variable(s) influence(s) whether a nonpolar...Ch. 5 - Which of the following does NOT contribute to the...Ch. 5 - How are active transport and coupled transport...Ch. 5 - A cell can use the process of facilitated...Ch. 5 - figure 5.5 describes a classic experiment...Ch. 5 - Each compartment of the endomembrane system of a...Ch. 5 - The distribution of lipids in the ER membrane is...
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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
- Which of the following statements regarding the selective permeability of the lipid bilayer is FALSE? A. the permeability of the lipid bilayer to different substances varies. B. The lipid bilayer component of the plasma membrane is highly permeable to nonvolatile molecules such as oxygen. C. The more hydrophobic or lipid soluble a substance is, the greater the lipid bilayers permeability to that substance. D. The lipid bilayer component of the plasma membrane is moderately permeable to ions and large, uncharged polar moleculesarrow_forwardWhat does asymmetry of the membrane refer to? O A. Differences in the arrangements and structures of the phospholipids in the bilayer. B. Differences in the arrangements, structures and kinds of proteins in the bilayer. C. Differences in the occurrence of carbohydrates in glycosylated proteins and lipids in the bilayer. D. Both A and B O E. All of these.arrow_forwardYou make a phospholipid bilayer with short saturated hydro carbon tails. You measure the permeability of this membrane to oxygen and note it is very permeable. You then double the length of the hydro carbon tails, and remeasue membrane permeability. Would you predict that longer hydrocarbon tails increase of decrease permeability? Defend predictionarrow_forward
- Which of the following best describes the lipid aggregates known as liposomes? A. They contain a hollow non-aqueous interior cavity. B. They are spherical structures with their hydrophobic regions aggregated in the interior cavity. C. They form because the cross-sectional area of the head group is greater than that of the acyl side chain(s). D. They are derived from a bilayer sheet.arrow_forwardWhich of the following is/are true about the Cellular Membrane Structure: A. All membranes from plants, animals and microorganisms have similar biomolecular ultrastructure but varies in the types of lipids found. B. All membranes examined that have 2 dark-staining layers in the electron microscope indicated the presence of a layer exposed to the outer cell surface and another facing the cytiplasmic layer. C. The plasma membrane of cells are seen as thin, rigid, gel-like structure that is around 5-10nm thick. D. Some membranes have more protein components and some have similar percentage composition as the lipids. A, B, C only B, C, D only A, C, D only A, B, D onlyarrow_forwardWhich of the following is true about lipid bilayers? A. They are self-forming. B. They are dynamic. C. They are fluid. D. They are permeable. A, C, D only A, B, C only B, C, D only A, B, C, Darrow_forward
- The cells of plant seeds store oils in the form of droplets enclosed by membranes. Unlike the membranes you learned about in this chapter, the oil droplet membrane consists of a single layer of phospholipids rather than a bilayer. Draw a model for a membrane around an oil droplet. Explain why this arrangement is more stable than a bilayer.arrow_forwardConsider the following diagram of the cell membrane. Which of the statements is NOT true regarding the cell membrane? Group of answer choices a. Proteins and carbohydrates are also components of the cell membrane. b. Certain phospholipids and proteins on the outer surface of the cell membrane are attached to carbohydrates. c. Some carbohydrates extend through the entire lipid bilayer and appear on both surfaces of the membrane d. Some of the proteins embedded in the cell membrane constitute channels (passage canals).arrow_forwardStatements:(1) Fats and oils have the same general chemical structure.(2) Biological waxes have a three-component “block diagram.”(3) In facilitated transport, a substance crosses a cell membrane with the help of a protein “pump.” a. All three statements are true. b. Two of the three statements are true. c. Only one of the statements is true. d. None of the statements is true.arrow_forward
- In the cell membrane, the hydrophilic part of the phospholipid molecule: Group of answer choices a.faces the exterior of the cell. b.faces the interior of the cell. c. is in the center of the phospholipid bilayer. d. both A and B.arrow_forwardWhich of the following does not apply to lipid asymmetry? a.It arises in the endoplasmic reticulum. b.It arises due to the flip-flop movement of specific phospholipids to the cytosolic monolayer. c.It is preserved throughout vesicular transport. d.It depends on the activity of flippase.arrow_forwardWhat variable(s) influence(s) whether a nonpolar molecule can move across a membrane by passive diffusion? a. The structure of the phospholipids bilayer b. The difference in concentration of the molecule across the membrane c. The presence of transport proteins in the membrane d. All of the choices are correct.arrow_forward
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The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license