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1. Substances move through biological membranes against concentration gradients via: a. Simple osmosis b. Active transport c. Reverse osmosis d. Simple diffusion e. None of the above 2. In biological membranes, the phospholipids are arranged in a: a Bilayer, with the fatty acids pointing toward each other b. Bilayer, with the fatty acids facing outward c. Single layer, with the fatty acids facing the interior of the cell d. Single layer, with the phosphorus-containing region facing the interior of the cell e. Bilayer, with the phosphate groups in the interior of the membrane 3.A protein that forms an ion channel through a membrane is most likely to be: a. A peripheral protein b. An integral protein c. A phospholipid d. An enzyme e. Entirely outside the phospholipid bilayer

1. Substances move through biological membranes against concentration gradients via: a. Simple osmosis b. Active transport c. Reverse osmosis d. Simple diffusion e. None of the above 2. In biological membranes, the phospholipids are arranged in a: a Bilayer, with the fatty acids pointing toward each other b. Bilayer, with the fatty acids facing outward c. Single layer, with the fatty acids facing the interior of the cell d. Single layer, with the phosphorus-containing region facing the interior of the cell e. Bilayer, with the phosphate groups in the interior of the membrane 3.A protein that forms an ion channel through a membrane is most likely to be: a. A peripheral protein b. An integral protein c. A phospholipid d. An enzyme e. Entirely outside the phospholipid bilayer

Biology: The Dynamic Science (MindTap Course List)
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter5: Membranes And Transport
Section: Chapter Questions
Problem 4TYK: A characteristic of carrier molecules in a primary active transport pump is that: a. they cannot...
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MCOS: 1. Substances move through biological membranes against concentration gradients via: a. Simple osmosis b. Active transport c. Reverse osmosis d. Simple diffusion e. None of the above 2.In biological membranes, the phospholipids are arranged in a: a. Bilayer, with the fatty acids pointing toward each other b. Bilayer, with the fatty acids facing outward c. Single layer, with the fatty acids facing the interior of the cell d. Single layer, with the phosphorus-containing region facing the interior of the cell e. Bilayer, with the phosphate groups in the interior of the membrane 3.A protein that forms an ion channel through a membrane is most likely to be: a. A peripheral protein b. An integral protein c. A phospholipid d. An enzyme e. Entirely outside the phospholipid bilayer 4.Cholesterol molecules: a. Help hold membranes together b. Transport ions across membranes c. Attach to carbohydrates d. Disrupt membrane function e. Alter the fluidity of the membrane 5. When placed in a hypertonic solution, plant cells: a. Shrink b. Swell c. Burst d. Transport water in e. Concentrate 6. A transporter that moves one type of particle in one direction is: a. A uniporter b. A symporter c. An antiporter d. A pinocytosis
Transcribed Image Text:MCOS: 1. Substances move through biological membranes against concentration gradients via: a. Simple osmosis b. Active transport c. Reverse osmosis d. Simple diffusion e. None of the above 2.In biological membranes, the phospholipids are arranged in a: a. Bilayer, with the fatty acids pointing toward each other b. Bilayer, with the fatty acids facing outward c. Single layer, with the fatty acids facing the interior of the cell d. Single layer, with the phosphorus-containing region facing the interior of the cell e. Bilayer, with the phosphate groups in the interior of the membrane 3.A protein that forms an ion channel through a membrane is most likely to be: a. A peripheral protein b. An integral protein c. A phospholipid d. An enzyme e. Entirely outside the phospholipid bilayer 4.Cholesterol molecules: a. Help hold membranes together b. Transport ions across membranes c. Attach to carbohydrates d. Disrupt membrane function e. Alter the fluidity of the membrane 5. When placed in a hypertonic solution, plant cells: a. Shrink b. Swell c. Burst d. Transport water in e. Concentrate 6. A transporter that moves one type of particle in one direction is: a. A uniporter b. A symporter c. An antiporter d. A pinocytosis
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