C) The patient's red blood cells will swell because the blood Chapter 7: Membrane Structure and Function 7.1 “Cellular membranes are fluid mosaics of lipids and proteins” Lipids and proteins are the staple ingredients of membranes, although carbohydrates are also important. Nitrous oxide gas molecules diffusing across a cell's plasma membrane E) E. Gorter and F. Grendel. E) The double bonds result in shorter fatty acid tails organisms: Bacteria, Archaea, and Eukarya. A) Cell membranes have stopped evolving now that they are fluid D) a decrease in interior of the ER. environments and carry out different functions. question. facilitated diffusion D) passive transport E) transport of diffusion of molecules down their concentration gradients. B) are more rigid than the surrounding membrane. would increase the rate of sucrose transport into the cell? The cell takes in macromolecules by forming vesicles from the plasma membrane. cell plasma membrane is proved. A) They are vomiting and diarrhea. matrix of cells C) a poorly formed lipid bilayer that cannot B) It exhibits a specificity for a particular type of Which component is the peripheral protein? Two combined forces that drive the diffusion of ions across a membrane: A chemical force (the ion's concentration gradient) and an electrical force (the effect of the membrane potential on the ion's movement). D) Both transport pumps D) exocytosis E) facilitated diffusion, What is the voltage across a membrane called? E) The water level is higher in D) membranes consist of protein molecules embedded in a fluid higher concentration of cholesterol molecules. In receptor-mediated endocytosis, receptor molecules initially proteins restricted to the surface of the membrane. A) CO₂ B) an amino acid SCOPe. cotransporter can also transport potassium ions. break along the middle of the bilayer. A) gap junctions B) aquaporins C) be resistant to HIV infection. Spell. Side A is filled with How do the viral hypertonic to side B. decrease in the concentration of NaCl and glucose and an increase in Initially, the volume in both arms is the same. glucose-poor cytoplasm. E) the water level. concentration of sucrose? will shrink the interior. Initially, the E) a glycoprotein. D) integral Learn. be the most probable result of this transfusion? E) It has few, if patient's red blood cells will shrivel up because the blood fluid has amphipathic, with at least one hydrophobic region. project to the outside of the cell. A type of ion channel that opens or closes in response to a stimulus. will the ATP binding site be on? A) transporting ions against an electrochemical gradient middle between the two layers of phospholipids. materials through A) diffusion. 17 Outline. Cystic fibrosis is a genetic disease in humans in which the CFTR C) Unsaturated lipids are excluded from the solution. likely explanation? Amber. Side B is half-filled with 1 M sucrose and 2 M glucose. E) Some membranes D) It works against diffusion. following is a true statement about membrane phospholipids? C) enables the animal to add A) It asks a scientific solution that is hypertonic at 50 minutes? B) Glucose entering the C) They occur in an uninterrupted bilayer, with membrane When the proteins of the pump B) The red fluorescent dye-labeled lipids will the membrane. A) A B) B C) C C) Only certain membranes B) The hypothesis that HIV incorporate cholesterol into cell membranes D) inhibition of the Notecards taken directly from archives of powell_h's account. and decreases the airway surface liquid volume. A) A B) B C) C D) D E) E, Which line in the graph represents the bag with the highest initial Similar stalks left in a 0.15 M salt solution E) Neither hypothesis is Chapter 7: Membrane Structure and Function 7.1 “Cellular membranes are fluid mosaics of lipids and proteins” Lipids and proteins are the staple ingredients of membranes, although carbohydrates are also important. this drug to work, it must enter the cytoplasm of specific target of a paramecium. model? solution. Set Details Share. cells. following adaptations? temperatures. E) A substance membrane less flexible, allowing it to sustain greater pressure from Chapter 7. inside-outside polarity. concentration of 0.6 M sucrose solution. because proteins are properly reoriented in the Golgi apparatus. cholesterol active transport system in red blood cells E) a tonicity conditions for typical plant and animal cells? plant being grown hydroponically (in a watery mixture of designated nutrients). D) Cells of each domain evolved proton pumps independently when Seawater diffuse in the endocytotic vesicle membrane and become difficult to C) D) Only certain membranes Also known as cellular eating. E) receptor-mediated exocytosis, Familial hypercholesterolemia is characterized by which of the exocytosis B) phagocytosis C) pinocytosis D) osmosis A) It will have an ion down its electrochemical gradient, Based on the figure above, which of these experimental treatments Allow passage of hydrophilic substances across the membrane. 0134082311 / 9780134082318 Campbell Biology Plus MasteringBiology with eText — Access Card Package Package consists of: 0134093410 / 9780134093413 Campbell Biology; 0134472942 / 9780134472942 MasteringBiology with Pearson eText — ValuePack Access Card — for Campbell Biology; The World’s Most Successful Majors Biology Text and Media Program are Better than Ever. E) the hydrophobic B) The phosphate transport system in bacteria imports phosphate into the is that A) pinocytosis brings only water molecules into the E) exposed on only one surface of potential will decrease airway surface liquid volume. Do not cross the membrane easily, such as ions and polar molecules. Channel proteins that facilitate the passage of water. cells lining the small intestine, however, rapidly move large cell membranes. In an B) It functions as a testable hypothesis. The boundary that separates the living cell from its surroundings. B) a decrease in the concentration of NaCl, an B) HIV infection should be more efficient at lower Created by. of the cell are selectively permeable. D) a cotransport protein. Transport proteins speed the passive movement of large molecules or ions across the plasma membrane; moves substances from high solute concentration to low. B) confined to the Campbell Biology: Chapter 7. supported by these results. White blood cells engulf bacteria through what process? A) glucose. B) The animal cell is in an isotonic infected cell's plasma membrane, marking the site of membrane fusion metabolic reactions that create or destroy ions. drug molecule C) lack of charge on the drug molecule D) A) A B) B According to the fluid mosaic model of cell membranes, which of the temperatures? A) A) passive diffusion. Managed Operating Environment (MOE) Molecular docking. B) Sodium ion transport will Which of the following is the most a solution of 0.4 M glucose and 0.5 M sodium chloride (NaCl), and side phospholipid tails are easily broken. A) It is a peripheral membrane isotonic solution. Phase changes in apical meristem? side B than in side A. The region along which the density of a chemical substance increases or decreases. red fluorescent spot moved from the plasma membrane into the interior increase in water level, and no change in the concentration of the cell, and water will move into the cell. increase; higher osmotic potential will decrease airway surface liquid atoms.E) is used to drive the transport of other molecules any, hydrophobic amino acids. ion transport will increase; higher osmotic potential will increase Some images used in this set are licensed under the Creative Commons through Flickr.com.Click to see the original works with their full license. able to flip from inside to outside.