Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 5.4, Problem 1TYK
Summary Introduction
Introduction:
The cell membrane is formed from two types of molecules. These are phospholipids and proteins. The phospholipids are a type of lipid molecules that form a bilayer structure. This layer protects the cell from the external environment. All cell membrane contains lipids.
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Which of the following is a characteristic feature of a ion channel protein in a plasma membrane?
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Chapter 5 Solutions
Principles of Biology
Ch. 5.1 - Which of the following is not a characteristic of...Ch. 5.1 - Prob. 2TYKCh. 5.2 - In an animal cell, how can changes in lipid...Ch. 5.2 - Prob. 2CCCh. 5.2 - Prob. 1TYKCh. 5.2 - Which of the following changes would make a...Ch. 5.3 - Prob. 1BCCh. 5.3 - Prob. 1CCCh. 5.3 - Prob. 2BCCh. 5.3 - Prob. 2CC
Ch. 5.3 - Prob. 1TYKCh. 5.3 - Prob. 2TYKCh. 5.4 - Prob. 1CCCh. 5.4 - Prob. 1TYKCh. 5.4 - Prob. 2TYKCh. 5.5 - Prob. 1BCCh. 5.5 - Prob. 1TYKCh. 5.6 - Prob. 1CCCh. 5.6 - A form of endocytosis that involves the formation...Ch. 5.7 - Prob. 1CCCh. 5.7 - Prob. 2CCCh. 5.7 - Prob. 1BCCh. 5.7 - Anchoring junctions that adhere adjacent animal...Ch. 5 - Which of the following statements best describes...Ch. 5 - Which of the following events in a biological...Ch. 5 - Prob. 3TYCh. 5 - Carbohydrates of the plasma membrane are bonded to...Ch. 5 - Which of the following movements would not be an...Ch. 5 - Prob. 6TYCh. 5 - Prob. 7TYCh. 5 - What features of a membrane are a major...Ch. 5 - Prob. 9TYCh. 5 - Large particles can be brought into the cell by...Ch. 5 - With your textbook closed, draw and describe the...Ch. 5 - Describe two different ways that integral membrane...Ch. 5 - A principle of biology is that living organisms...Ch. 5 - Prob. 1CBQCh. 5 - With regard to bringing solutes into the cell...
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- Using the answer code on the right, indicate which membrane component is responsible for the function in question: 1. channel formation____________________________________ (a) lipid bilayer 2. barrier to passage of water- __________________ (b) proteins soluble substances ____________________________________ (c) carbohydrates 3. receptor sites 4. membrane fluidity 5. recognition of self 6. membrane-bound enzymes 7. structural boundary 8. carriersarrow_forwardWhich of the following molecules can bind to and open at least one type of Kir channel? ATP PIP2 EDTA All of the abovearrow_forwardWhich of the following statements about ion channels is INCORRECT? Like carrier proteins, most channel proteins are specific regarding which molecules are allowed to pass. Channel proteins can have open or closed configurations. Unlike carrier proteins, some channel proteins are engaged in active transport of solutes. Channel proteins are used extensively in nerve cells, in which they are responsible for transduction of electrical signals. Compared to carrier proteins, channel proteins allow much faster transport.arrow_forward
- Which of the following is the correct statement regarding ion channels? Physical deformation of the membrane cannot open ion channels Ligand-gating means that an ion binds to the channel, which stimulates its opening. If the channel pore was the right size, Na and K could both pass through because they have the same charge A voltage gated Na channel can open to allow Na movement against its electrochemical gradientarrow_forwardWhich of the following membrane transport mechanisms requires expenditure of metabolic energy? active transport of water facilitated transport of valine coordinated transport of Na+ and K+ against concentration gradient. diffusion of steroidsarrow_forwardWhich out of the following is not a mediated transport?a) Facilitated diffusionb) Primary active transportc) Secondary active transportd) Simple diffusionarrow_forward
- Which of the following is correctly paired? Two answer choices are correct. osmosis= a type of active transport facillitated diffusion = a transport proteins are used to move substances across a membrane diffusion = a type of passive transportarrow_forwardWhen the nerves deliver a signal to contract, Ca++ (calcium ions) rush into the cell. The calcium ion influx causes specialized fibers to contract. Afterward, calcium ions are pumped out of the cell by calcium ATPases. What transport type(s) is occuring?s antiporter only ion gated transport followed by active transport active transport only ion gated transport only active transport followed by ion gated transportarrow_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
- Which of the following is/are associated with passive (facilitated) transport? Aquaporin Sodium-Potassium pump Voltage-gated K+ channel Glucose carrier protein Ligand-gated Na+ channelarrow_forwardWhich 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_forwardWhich of the following presents the correct sequence of steps involved in the short-distance transport of solutes across plasma membrane? A. A-D-B-C B. D-B-A-C C. B-A-C-D D. A-B-C-Darrow_forward
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