When the movement of lipids in biological membranes was measured, it wasobserved that:OA) Saturated lipids move slowerB) Transverse (across the bilayer) movement is slower than lateral movementC) Transverse (across the bilayer) movement is faster than lateral movementOD) Proteins move faster than lipids

The cell membrane is constituted of a phospholipid bilayer. According to the fluid mosaic model, the…

Answered: When the movement of lipids in…

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter3: Cell Structure And Function

Section: Chapter Questions

Problem 10RQ: Which plasma membrane component can be either found on its surface or embedded in the membrane...

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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, D
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
Which of the following refer/s to lipid movement in membranes? I. transverse diffusion II. phospholipid fatty acyl chains bending III. lipids exchange places within one monolayer IV. lipids rotating within their original location I, II, III only I, II, III, IV I, III, IV only II, III, IV only
Which of the following statements is (are) consistent with what is known about membranes? (a) A membrane consists of a layer of proteins sandwiched between two layers of lipids. (b) The compositions of the inner and outer lipid layers are the same in any individual membrane. (c) Membranes contain glycolipids and glycoproteins. (d) Lipid bilayers are an important component of membranes. (e) Covalent bonding takes place between lipids and proteins in most membranes.
Integral proteins associate with the membrane through A. covalent attachment to lipids. B. covalent attachment to lipid anchors such as palmitoyl groups. C. hydrophobic interactions with lipids. D. interactions with carbohydrates attached to lipids.
Which of the following are the main structural components of the lipid bilayer of all cell membranes? A. Phospholipids B. Waxes C. Triglycerides D. Steroids
Although both faces of a biomembrane are composed of the same general types of macromolecules, principally lipids and proteins, the two faces of the bilayer are not identical. What accounts for the asymmetry between the two faces?
What molecules are responsible for the physical properties of a cell membrane?
Differentiate between materials that can and cannot diffuse through the lipid bilayer
Which of the following is true about motion of membrane lipids? A. They can move most rapidly when in the gel phase. B. Lateral diffusion is catalyzed by flippase proteins. C. To increase the fluidity of membranes at low temperatures, cells synthesize more saturated fatty acids and fewer unsaturated fatty acids. D. Transbilayer diffusion involves the transfer of lipids from one face of the bilayer to another.
Define the following terms: a. lipid bilayer b. fluid mosaic model c. membrane fluidity d. flippase e. floppase
Identify which lipids are important components of the cellular membrane. SELECT ALL THAT APPLY A. Phospholipids B. Bile Salts C. Fatty Acids D. Cholesterol

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