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Chapter 11

Chapter 11 vocabulary

A plot of _______index vs AA residue number in a protein predicts potential membrane proteins; such a plot is NOT useful for predicting -barrel transmembrane segments. hydropathy
The structual organization of lipids in biological membranes bilayer
One category of ______-_______ ATPases that are responsible for the production of ATP in mitochondria and chloroplats; they are also known as ATP synthases. F type
______ refers to the simulaneous transport of two solutes across a membrane in opposite directions antiport
______ proteins are very firmly associated with the membrane via hydrophobic interactions with the fatty acidchains of membrane lipids. integral
The _____ potential takes into account the effects of the chemical concentration gradient and the electrical gradient. electrochemical
An example of a(n) ______ gated ion channel is the acetylcholine receptor. ligand
The _____ family of integral proteins provides channels for rapid movement of water acrossplasma membranes. aquaporin
Facilitated diffusion is also called _______ transport. passive
The transport of solutes against a concentration or electrochemical gradient that requires the input of energy is known as _______ transport active
Ion-selective ________ provide a route for the rapid movement of of ions across mmbranes channels
Simultaneous transport of two solutes across a membrane, in either the same or opposite directions. cotransport
A membrane protein in an intact erythrocyte that reacts with trypsin must have at least one domain exposed on the ______ face of the lipid bilayer outer
______; transport of a single solute across a membrane uniport
An ion ______ is a source of potential energy that drives secondary transport processes in cells. gradient
______ interactions among lipid molecules in water drive the formation of micelles, bilayers, and liposomes. hydrophobic
The NaK _______ is an example of a cotransporter that is critical to the function of all cells. ATPase
Type of diffusion that occurs down a concentration gradient. simple
Membrane component that can modulate membrane fluidity cholesterol
The major class of membrane lipids, in terms of weight percent. phospholipid
_____-______ ATPases that are reversibly phosphorylated by ATP-as part of the transport process. P-Type
______ diffusion is mediated by an integral membrane protein that lowers the activation energy for transport, this process exhibits saturation kinetics glycolipid
SNAREs are proteins required for membrane _____ in the process of exocytosis. fusion
"Flip-flop" of lipids in membrane bilayers is also known as ______ diffusion; facilitated by flippases transbilayer
Describes the polar head groups of membrane lipids and peripheral membrane proteins. hydrophilic
The evocative name of the model describing the structure of biological membranes is the ________mosaic model. fluid
Proteins and phospholipids rarely exhibit this type of movement in membranes without an input of energy. flip-flop
Face of the lipid bilayer where 2 K ions are released by the NaK ATPase. inner
Type of rapid diffusion exhibited by both lipids and proteins in membranes. lateral
The transport of two solutes in the same direction across a lipid membrane. symport
____________-___________ ATPases pump protons, regulating the pH of intracellular components v-type
Created by: hilarye
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