Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 5, Problem 3MC
Summary Introduction
Introduction:
There are various numbers of membrane proteins embedded on the surface of phospholipid bilayer of the cell membrane. Glycoproteins are projected by many membrane proteins that bear carbohydrate groups.
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9) Gap junctions are intercellular connections that
A. primarily serve to keep cells separated and allow for transport across a tissue barrier.
B. serve as a regulated cytoplasmic bridge for sharing of small molecules between the cells.
C. serve as a barrier to prevent protein movement within the cellular membrane.
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One is true about smooth endoplasmic reticulum
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Chapter 5 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 5.1 - Prob. 1CYLCh. 5.1 - diagram and describe the fluid mosaic model of...Ch. 5.1 - Prob. 3CYLCh. 5.1 - Researchers have recently discovered ion channels...Ch. 5.1 - Vicious Venoms Some of the most devastating...Ch. 5.1 - Vicious Venoms Most snake venoms are nasty...Ch. 5.2 - Prob. 1CYLCh. 5.2 - Prob. 2CYLCh. 5.2 - Prob. 3CYLCh. 5.2 - Prob. 1TC
Ch. 5.2 - Prob. 2TCCh. 5.2 - If a plant cell is placed in water containing no...Ch. 5.2 - Would a cell over use active transport to move...Ch. 5.2 - Prob. 5TCCh. 5.2 - Prob. 1HYEWCh. 5.3 - Prob. 1CYLCh. 5.3 - explain how these junctions function and provide...Ch. 5.3 - Prob. 1TCCh. 5 - Animal cells are surrounded by________ fluid is...Ch. 5 - Which of the following cannot enter a cell by...Ch. 5 - Prob. 3MCCh. 5 - Prob. 4MCCh. 5 - Prob. 5MCCh. 5 - Prob. 1FIBCh. 5 - A membrane that is permeable to some substances...Ch. 5 - Prob. 3FIBCh. 5 - Prob. 4FIBCh. 5 - After each molecule, place the two-word term that...Ch. 5 - Prob. 6FIBCh. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - What are the five categories of proteins commonly...Ch. 5 - Prob. 4RQCh. 5 - Define hypotonic, hypertonic, and isotonic. What...Ch. 5 - Describe the following types of transport...Ch. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - Prob. 1ACCh. 5 - Predict and sketch the configuration that ten...
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- choose one: a. Steroids are hormones processed by their target cells at the plasma membrane b. Steroids are hormones which are able to be dissolved in water c. Steroids are made from cholesterol a type of fat d. Steroids do not use nuclear receptorsarrow_forwardThe smooth endoplasmic reticulum is a. involved in protein synthesis. b. a site of protein glycosylation. c. used to store a variety of ions. d. the site of lipid and membrane synthesis.arrow_forwardChilling most directly affects a. nuclear proteins. b. vacuolar inclusions. c. the cytoskeleton. d. membrane lipids.arrow_forward
- Which of the following statements about "leak channels" in the plasma mem- brane is correct? A. Proteins that form these channels bind to solutes to allow them to pass into the cell. B. They are passageways formed by proteins to allow water and ions to move passively through the membrane. C. They allow small ions and molecules to move between adjacent cells. D. They are formed by glycoprotein and proteoglycans to allow hormones to enter cells.arrow_forwardReceptors located within the cell are mostly A. Protein B. Glucoprotein C. Glucose D. Chitin D. Nonearrow_forwardWhich of the following statements about cellular membranes is/are FALSE? A. Only lipids move Within the membrane, while the proteins are anchored and immobile. B. Membranes are composed of lipids and proteins. C. Substances may be transported across membranes by active transport, facilitated transport or diffusion. D. Membrane proteins are classified as integral or peripheral, upon their functionarrow_forward
- Which of the following is NOT a function of membrane proteins? a.Regulate the passage of ions b.Act as carrier molecules for various solutes c.Act as anchors or stabilizers for the cell membrane d.Storage of cellular nutrientsarrow_forwardMembrane carriers resemble enzymes except for the fact that carriersa. are not proteins.b. do not have binding sites.c. are not selective for particular ligands.d. change conformation when they bind a ligand.e. do not chemically change their ligands.arrow_forwardIndicate whether the following statements are true or false. If a statement is false, explain why it is false. a. All types of cells contain cell walls, but only some cell types possess plasma membranes. b. The distribution of specific lipids to the inner and outer leaflet is asymmetrical, or biased, in plasma membranes. C. Lateral diffusion is the movement of lipids from one layer of the membrane to the other. d. Fatty acids tails are used to embed integral, transmembrane proteins in the plasma membrane.arrow_forward
- Which of the following statements describes the function of plasma membranes? I. define the boundaries of the cell and its organelles and act as permeability barriers II. sites for specific biological and chemical functions III. possess transport proteins that regulate the movement of substances into and out of the cell and its organelles IV. contain protein molecules that act as receptors to detect external signals V. provide mechanisms for cell-to-cell contact, adhesion, and communication A. I and III B. I, III, IV C. I, III, IV, V D. I, II, III, IV, Varrow_forwardMark the following statements about the plasma membrane as true or false. If a statement is false, correct it to make a true statement. a. _____ Integral membrane proteins generally span the width of the plasma membrane, whereas peripheral proteins are found on only one side of the membrane. b. _____ Cholesterol provides the plasma membrane with stability in the face of changing ion concentrations . c. _____ Membrane cholesterol is vitally important for cell-cell recognition. d. _____ Membrane proteins often function as channels or carriers. e. _____ The overall structure of the plasma membrane is a mosaic with the components locked tightly in placearrow_forwardRegulating transport of substances in and out of the cell is the a. cell membrane. b. nuclear membrane. c. cytoplasm. d. nucleus.arrow_forward
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