Fluid Mosaic Model Diagram | Quizlet

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15 Terms

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Fluid Mosaic Model

A model that refers to how the lipid bilayer tends to act more like a liquid than a solid and contains a number of different components.

<p>A model that refers to how the lipid bilayer tends to act more like a liquid than a solid and contains a number of different components.</p>
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TERM

Glycolipid

DEFINITION

Phospholipid with an attached sugar chain. Maintains stability of the membrane and facilitates cell-cell interactions.

<p>DEFINITION</p><p>Phospholipid with an attached sugar chain. Maintains stability of the membrane and facilitates cell-cell interactions.</p>
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TERM

Glycoprotein

DEFINITION

A protein with an attached sugar chain. Act as ID tags which give each cell its identity.

<p>DEFINITION</p><p>A protein with an attached sugar chain. Act as ID tags which give each cell its identity.</p>
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TERM

Cholesterol

DEFINITION

Steroid molecule helps stabilize the plasma membrane and prevent the phospholipid molecules from "sticking" together.

<p>DEFINITION</p><p>Steroid molecule helps stabilize the plasma membrane and prevent the phospholipid molecules from "sticking" together.</p>
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TERM

Phospholipid

DEFINITION

A molecule that has a hydrophilic phosphate head and a hydrophobic lipid tail.

<p>DEFINITION</p><p>A molecule that has a hydrophilic phosphate head and a hydrophobic lipid tail.</p>
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TERM

Hydrophobic

DEFINITION

Water fearing (non-polar). substances that will not mix with water.

<p>DEFINITION</p><p>Water fearing (non-polar). substances that will not mix with water.</p>
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TERM

phospholipid bilayer

DEFINITION

A two-layered arrangement of phosphate and lipid molecules that form a cell membrane, the hydrophobic lipid ends facing inward and the hydrophilic phosphate ends facing outward.

<p>DEFINITION</p><p>A two-layered arrangement of phosphate and lipid molecules that form a cell membrane, the hydrophobic lipid ends facing inward and the hydrophilic phosphate ends facing outward.</p>
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TERM

Hydrophilic

DEFINITION

Water loving (polar), molecules that are able to dissolve in water

<p>DEFINITION</p><p>Water loving (polar), molecules that are able to dissolve in water</p>
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Channel proteins

Proteins that provide passageways through the membrane for certain hydrophilic (water-soluble) substances such as polar and charged molecules.

<p>Proteins that provide passageways through the membrane for certain hydrophilic (water-soluble) substances such as polar and charged molecules.</p>
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Carrier proteins

Proteins that bind solutes and transport them across the plasma membrane

<p>Proteins that bind solutes and transport them across the plasma membrane</p>
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Receptor proteins

Proteins that transmit information in and out of cells. They allow communication between cells.

These proteins have shapes that allow only specific molecules to bind to them.

<p>Proteins that transmit information in and out of cells. They allow communication between cells.</p><p>These proteins have shapes that allow only specific molecules to bind to them.</p>
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TERM

carbohydrate chain

DEFINITION

Form distinctive cellular markers allowing cells to recognize one another.

<p>DEFINITION</p><p>Form distinctive cellular markers allowing cells to recognize one another.</p>
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TERM

integral membrane proteins

DEFINITION

A protein embedded in the lipid bilayer of a cell. These are typically cell surface receptors, channels, or pumps.

<p>DEFINITION</p><p>A protein embedded in the lipid bilayer of a cell. These are typically cell surface receptors, channels, or pumps.</p>
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TERM

peripheral membrane proteins

DEFINITION

Proteins associated with but not embedded within the plasma membrane.

<p>DEFINITION</p><p>Proteins associated with but not embedded within the plasma membrane.</p>
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TERM

transmembrane proteins

DEFINITION

Integral proteins that span the membrane.

<p>DEFINITION</p><p>Integral proteins that span the membrane.</p>