________ is the simultaneous transmembrane movement of two molecules in opposite directions through a transport protein.

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An area of a lipid bilayer with a distinct lipid composition and near-crystalline consistency is called a/an ________.

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The movement of a lipid within one leaflet of a bilayer is called ________.

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________ is the fusion of an intracellular vesicle with the plasma membrane in order to release the contents of the vesicle outside the cell.

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________ is the charge of one mole of electrons.

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A lipid to which carbohydrate is covalently attached is a/an ________.

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An artificial vesicle consisting of a lipid bilayer surrounding an aqueous interior is a/an ________.

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A long-chain hydrocarbon with a carboxylic acid group at one end is a/an ________.

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A/An ________ is a metabolically required substance that cannot be synthesized by an animal and must therefore be obtained from the diet.

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________ is a model of biological membranes in which integral membrane proteins float and diffuse laterally in a fluid lipid layer.

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A/An ________ is an amphipathic lipid containing a polar head group and an acyl group attached to a derivative of palmitate and serine.

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A membrane protein that is embedded in the lipid bilayer is a/an ________ protein, also called an intrinsic protein.

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A substance released by a nerve cell to alter the activity of a target cell is a/an ________.

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A/An ________ is a lipid constructed from 5-carbon units with an isoprene skeleton.

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________ is a lipid in which three fatty acids are esterified to a glycerol backbone.

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Myelin sheath is the multilayer coating of ________-rich membranes that insulates a mammalian neuron.

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________ is the movement of a lipid from one leaflet of a bilayer to the other.

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An enzyme that catalyzes the movement of a lipid from one bilayer leaflet to another is ________, also called a flippase.

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________ is the difference in electrical charge across a membrane.

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The thermodynamically spontaneous protein-mediated transmembrane movement of a substance from high to low concentration is called ________.

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________ is the simultaneous transmembrane movement of two molecules in the same direction through a transport protein.

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The momentary reversal of membrane potential that occurs during transmission of a nerve impulse is called ________.

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A/An ________ is any member of a broad class of macromolecules that are largely or wholly hydrophobic and therefore tend to be insoluble in water but soluble in organic solvents.

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________ is an amphipathic lipid in which two fatty acyl groups and a polar phosphate derivative are attached to a glycerol backbone.

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A/An ________ is loaded with neurotransmitters to be released from the end of an axon.

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