Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
6th Edition
ISBN: 9780134555430
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 9LTB
Which of the following forms of membrane transport require specific membrane proteins?
- diffusion;
- exocytosis;
- facilitated diffusion;
- active transport;
- facilitated diffusion and active transport
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diffusion
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The force driving simple diffusion is _____, while the energy source for active transport is _____.
the concentration gradient; ATP
phosphorylated protein carriers; ATP
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Chapter 3 Solutions
Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
Ch. 3 - Prob. 1LTBCh. 3 - Add labels to the figure that follows, which...Ch. 3 - Prob. 3LTBCh. 3 - Which of the following is not a function of water?...Ch. 3 - Prob. 5LTBCh. 3 - Prob. 6LTBCh. 3 - Prob. 7LTBCh. 3 - Prob. 8LTBCh. 3 - Which of the following forms of membrane transport...Ch. 3 - Prob. 10LTB
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- The passive movement of a solute through a membrane protein down its concentration gradient is an example of _________. a. osmosis b. active transport c. endocytosis d. diffusionarrow_forwardThe tails of the phospholipids of the plasma membrane are composed of _____ and are _____? a. phosphate groups; hydrophobic b. fatty acid groups; hydrophilic c. phosphate groups; hydrophilic d. fatty acid groups; hydrophobicarrow_forwardA transport protein requires ATP to pump sodium ions across a membrane. This is a case of ______. a. passive transport b. active transport c. facilitated diffusion d. a and carrow_forward
- Which of the following methods of transport is being used to transfer the substance into the cell in the accompanying graph? a. diffusion down a concentration gradient b. osmosis c. facilitated diffusion d. active transport e. vesicular transport f. It is impossible to tell with the information provided.arrow_forwardWhich of the following is a characteristic feature of a ion channel protein in a plasma membrane? It is specific for a certain type of ion. It works against diffusion. It is a peripheral membrane protein.arrow_forwardThe net diffusion of a solvent, across a semi-permeable membrane, from low to high solute concentration, is the precise definition of: simple diffusion facilitated diffusion active transport passive transport osmosisarrow_forward
- Which of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings? diffusion active transport osmosis facilitated diffusionarrow_forwardWhich of the following membrane transport proteins would you expect to be the most selective at conducting substances into the eukaryotic cell cytoplasm (although not the most rapid)? the bicarbonate ion channel the chloride ion channel the fructose carrier protein the sodium ion channel the potassium ion channelarrow_forwardThe movement of a substance across a membrane, from low to high concentrations of that substance (requiring the expenditure of energy, often in the form of ATP hydrolysis), is always categorized as: active transport facilitated diffusion simple diffusion passive transport osmosisarrow_forward
- Which of the following does not contribute to the selective permeability of a biological membrane?a. specificity of the carrier proteins in the membraneb. selectivity of channel proteins in the membranec. hydrophobic barrier of the phospholipid bilayerd. hydrogen bond formation between water and phosphate grouparrow_forwardWhy is it important that some molecules diffuse freely across the membranearrow_forwardWhich of the following is true regarding bulk transport? ATP is required to pump molecules against the concentration gradient Bulk transport is an example of passive transport Transport of large quantities of materials ATP changes the shape of a protein channel during active transportarrow_forward
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The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license