Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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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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Students have asked these similar questions
Which of the following is true about phospholipid bilayers?
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 molecules
What 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.
Chapter 5 Solutions
Biology
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 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_forwardThe 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_forward
- Statements:(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_forwardIn 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_forward
- Which of the following correctly describes the structure of the phospholipid bilayer in plasma membranes? The polar hydrophilic groups of each leaflet face outward, toward the aqueous environment on either side of the membrane. A The non-polar hydrophobic groups of each leaflet face inward, toward each other. The non-polar hydrophilic groups of each leaflet face outward, toward the aqueous environment on either side of the membrane. B The polar hydrophobic groups of each leaflet face inward, toward each other. The polar hydrophilic groups of each leaflet face inward, toward each each other. The non-polar hydrophobic groups of each leaflet face outward, toward the aqueous environment on either side of the membrane. The non-polar hydrophilic groups of each leaflet face inward, toward each each other. The polar hydrophobic groups of each leaflet face outward, toward the aqueous environment on either side of the membrane.arrow_forwardChoose all that aplly that are TRUE for the lipid bilayer:Negative mark is given to incorrect answer(s). a. The polar head groups of the bilayer are positively charged. b. Individual lipid molecules in one face (monolayer) of the bilayer cannot diffuse (flip-flop) to the other monolayer and must be catalyzed by a lipid transporter called flippase. c. The bilayer is stabilized by covalent bonds between neighbouring phospholipid molecules. d. Polar, but uncharged, compounds readily diffuse across the bilayer. e. Individual lipid molecules are free to diffuse laterally on the surface of the bilayer.arrow_forwardWhich of the following compounds can diffuse through the lipid bilayer of a cell membrane? Select all that apply. A. Large polar molecules B. Gases and hydrophobic molecules C. Ions D. Small polar molecules like waterarrow_forward
- Which of the following statements is/are incorrect? 1. The cell membrane is purely hydrophobic. 2. Glycerophospholipids have a phosphate derivative group that is known as the polar head group. 3. The individual glycerophospholipid molecules that aggregate become covalently linked to each other to form a lipid bilayer. 4. The interfacial region of a lipid bilayer is polar due to the polar head groups of the lipid molecules that make up the bilayer. O 1 and 3 O 1 only O 2 and 4 O 3 only O 4 onlyarrow_forwardFor biological membranes, which of the following statement is NOT true? A. The phospholipid bilayer is a fluid matrix. B. Protein can be anchored to the membrane by covalently linked lipid chains. C. Proteins can move laterally across the membrane. D. For organisms living in cold temperature, their cell membranes contain more triacylglycerols. E. Transverse motion of lipid molecules can occur occasionally. Enzyme lowers when... A. The energy difference between the substrate and the transition state B. The energy difference between the product and the transition state C. Both A and B D. Neither A nor Barrow_forwardChoose which substances cannot pass through the phospholipid bilayer of the plasma membrane. A. Gasses B. Charged molecules C. Hydrophobic molecules D. Lions E. Water F. ATParrow_forward
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