Which of the following is not a way to associate membrane proteins with the lipid bilayer? Group of answer choices: a. Hydrophobic amino acids that form a short domain in membrane proteins are in contact with the lipid bilayer. b. Proteins are attached to the lipid bilayer on its surface via covalently linked to one or more lipid groups. c. A protein can be bound to the lipid bilayer by interacting with other membrane proteins. d. A protein can be embedded into the lipid bilayer by forming hydrogen bonds between amino acid side chains and phospholipids. Na+-K+ pump is Group of answer choices: a. one kind of ion channels b. an active carrier protein c. an antiporter d. b and c
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Which is the following not the way to associate membrane proteins with lipid bilayer? a. Hydrophobic amino acids that form a short domain in membrane proteins are in contact with the lipid bilayer. b. Proteins are attached to the lipid bilayer on its surface via covalently linked to one or more lipid groups. c. A protein can be bound to the lipid bilayer by interacting with other membrane proteins. d. A protein can be embedded into the lipid bilayer by forming hydrogen bonds between amino acid side chains and phospholipids List the following compounds in order of from high membrane permeability to low membrane permeability. Ca2+, 2. Glucose, 3. N2, 4. Ethanol a. 1, 2, 3, 4 b. 4, 3, 2, 1 c. 1, 4, 3, 2 d. 3, 4, 2, 1
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Which best describes the structure of a cell membrane? a. proteins between two bilayers of phospholipids b. proteins embedded in a bilayer of phospholipids c. a bilayer of protein coating a layer of phospholipids d. cholesterol embedded in a bilayer of phospholipids
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According to the fluid mosaic model of membrane structure, proteins of the membrane are mostly \begin{equation}\begin{array}{l}{\text { (A) spread in a continuous layer over the inner and outer }} \\ {\text { surfaces of the membrane. }} \\ {\text { (B) confined to the hydrophobic interior of the membrane. }} \\ {\text { (C) embedded in a lipid bilayer. }} \\ {\text { (D) randomly oriented in the membrane, with no fixed inside- }} \\ {\text { outside polarity. }}\end{array}\end{equation}
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