Summarize some important ideas and words related to the fluid mosaic model of membranes. From the tablebelow, make a straight line (horizontal, vertical or diagonal) by choosing three words that you can connect in acomplete sentence or thought.cell-to-cell communicationglycoproteinboundarycholestrolamphipathicintegral proteinphospholipidshapefluid

The fluid mosaic model was proposed by the scientists SJ. Singer and Garth L. Nicolson in 1972, and…

Answered: Summarize some important ideas and…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

Describe the phospholipid structure and how its arrangement in the plasma membrane allows for the separation of internal and external environments as well as its selectively permeable nature.
Provide a detailed, written explanation of the plasma membrane structure explaining both composition and arrangement. Refer to your drawings as necessary.
State the functions and importance of each of the following cell membrane components. 1. Phospholipid 2. Sphingolipid 3. Glycoprotein 4. Glycolipid 5. Peripheral Protein 6. Integral Protein 7. Cholesterol 8. Cytoskeleton Filaments
The fluid mosaic model of the membrane describes the membrane as: containing a significant quantity of water in the interior composed of fluid phospholipids on the outside and protein on the inside composed of proteins on the outside and phospholipids on the inside made of proteins embedded into a fluid phospholipid bilayer
Below are listed molecules with different chemical characteristics. Knowing that all molecules will eventually diffuse across a phospholipid bilayer, select the list that most accurately predicts the relative rates of diffusion of these molecules (fastest to slowest) across a biological membrane. alanine, propanol, sodium, estrogen sodium, propanol, alanine, estrogen estrogen, propanol, sodium, alanine estrogen, propanol, alanine, sodium
Two theories of membrane structure are discussed below. Unit Membrane Model Phospholipid molecules are the most abundant type of lipids in cell membranes. Each consists of a nonpolar, hydrophobic tail, and a polar, hydrophilic head. The phospholipid chains orient themselves to form a bilayer with the tails pointed inward and the hydrophilic heads lined up on both sides of the bilayer. An extended monomolecular layer of protein coats both the outside of the membrane and the inside of the bilayer, but the protein does not penetrate the bilayer. When thin slices of membranes were examined with an electron microscope, three layers were seen: two electron-dense layers, with one wider layer between them. It was believed that the electron-dense layers represented proteins, and the lighter area represented lipids. Fluid Mosaic Model The structure of the fluid mosaic membrane is a bilayer of phospholipid molecules with proteins inserted into the bilayer. Hydrophilic regions of both the lipids…
Describe the Fluid-Mosaic Model of membrane structure. Indicate the hydrophobic and hydrophilic regions of the membrane and give examples of various membrane proteins.
Identify basic structure of the 8 types of membrane proteins shown below Understand how primary structure (e.g., regional hydrophobicity and hydrophilicity) allows proper membrane interaction/association. Compare/contrast the degree to which proteins are attached to membranes. Which have more lateral movement? Diversity of attachment and lateral movement allows efficient function. Understand where glycosylated lipids and proteins are found and what general functions they serve. Know the role/significance of cysteine disulfide bonds. On which side of the plasma membrane do they generally occur? Why? lipid bilayer A La s *****P & de www CYTOSOL COOH NH₂ cccccce 6
You will create a hand drawn, 2-dimensional, labelled diagram of the plasma membrane (not a 3D diagram). Label the following structures in your diagram: A phospholipid A peripheral protein An integral protein A cholesterol Intracellular and extracellular portion of the membrane Hydrophobic and hydrophilic areas Also include a detailed drawing of a single phospholipid labeling its component
Which of the following statements about a typical plasma membrane is correct? The hydrophilic interior of the membrane is composed primarily of the fatty acid tails of the phospholipids. Carbohydrates on the membrane surface are important in determing the overall bilayer structure. Phospholipids are the primary component that determines which solute can cross the plasma membrane. The two sides of the plasma membrane have different lipid and protein composition. The plasma membrane is covalently linked network of phospholipids and proteins that controls the movement of solutes into and out of a cell.
A protein that spans the phospholipid bilayer one or more times is An extracellular matrix protein A glycoprotein A peripheral protein Integrin or transmembrane protein
Which of the following statements is true about biomembrane? Membrane proteins and lipids are distributed symmetrically in the two leaflets of the bilayer. Lipid-linked proteins are anchored to the bilayer by the lipid moiety that covalently attached to the protein. Lipid molecules can diffuse laterally in each leaflet of the bilayer but they can never flip from one leaflet to another. The fluid mosaic model describes the dynamic arrangement and interaction of proteins but not lipids in membrane. Bilayers are formed by triacylglycerol, glycerophospholipids, and sphingolipids.

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