Human Anatomy (8th Edition) - Standalone book
8th Edition
ISBN: 9780321883322
Author: Frederic H. Martini, Robert B. Tallitsch
Publisher: PEARSON
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Chapter 2, Problem 14RFT
Summary Introduction
Introduction:
The membrane flow is the cellular mechanism that changes functional and anatomical characteristics of the plasma membrane. The continual exchange and movement within cell is called membrane flow.
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The proteins in the plasma membranes may function as (a) receptors and channels. (b) carriers and enzymes. (c) anchors and identifiers. (d) a, b, and c are correct.
The fundamental bilayered structure of the plasma membrane is determined almost exclusively by (a) phospholipid molecules, (b) peripheral proteins, (c) cholesterol molecules, (d) integral proteins.
Which statements are consistent with the fluid-mosaic model of membranes? (a) All membrane proteins are bound to the interior of the membrane. (b) Both proteins and lipids undergo transverse (flip-flop) diffusion from the inside to the outside of the membrane. (c) Some proteins and lipids undergo lateral diffusion along the inner or outer surface of the membrane. (d) Carbohydrates are covalently bonded to the outside of the membrane. (e) The term mosaic refers to the arrangement of the lipids alone.
Chapter 2 Solutions
Human Anatomy (8th Edition) - Standalone book
Ch. 2 - Level 1 Reviewing Facts and Terms Match each...Ch. 2 - Prob. 2RFTCh. 2 - Level 1 Reviewing Facts and Terms Match each...Ch. 2 - Level 1 Reviewing Facts and Terms
Match each...Ch. 2 - Prob. 5RFTCh. 2 - Prob. 6RFTCh. 2 - Level 1 Reviewing Facts and Terms Match each...Ch. 2 - Match each numbered item with the most closely...Ch. 2 - Prob. 9RFTCh. 2 - All of the following membrane transport mechanisms...
Ch. 2 - Prob. 11RFTCh. 2 - Compared to the intracellular fluid, the...Ch. 2 - 13. Label the following organelles on the diagram...Ch. 2 - Prob. 14RFTCh. 2 - Prob. 15RFTCh. 2 - 16. Three major functions of the endoplasmic...Ch. 2 - 17. A selectively permeable plasma membrane
(a)...Ch. 2 - Prob. 18RFTCh. 2 - Identify the advantages a cell has because its...Ch. 2 - 2. Identify the three basic concepts that make up...Ch. 2 - 3. Identify the three passive processes by which...Ch. 2 - Compare and contrast facilitated diffusion and...Ch. 2 - Prob. 5RCCh. 2 - Prob. 6RCCh. 2 - 7. Name the stages of mitosis shown in this...Ch. 2 - Identify the four general functions of the plasma...Ch. 2 - Tell why the skin of your hands gets swollen and...Ch. 2 - Prob. 2CTCh. 2 - Experimental evidence demonstrates that in the...
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- Which of the following is not a function of the plasma membrane? (a) transports materials (b) helps structurally link cells (c) has receptors that relay signals (d) anchors the cell to the extracellular matrix (e) manufactures proteinsarrow_forwardc) Figure 3 shows how materials are actively transported across plasma membrane. Extracellular Process X Process Y Figure 3 i) Give two (2) similarities between process X and Y. ii) State two (2) characteristics of a cell that carry out active transport. .... ...... ..... ... ..........arrow_forwardIn the cell there are three types of filaments that form the cell skeleton. Answer:a)Which they are.b)How they are constructed.c)What their function is.arrow_forward
- If a solute to be transported across the plasma membrane is a much larger molecule than an ion or glucose and more like a biopolymer or a dangerous digestive enzyme or a drop of proteins, cells use a completely different type of transport mechanism called ……………………………arrow_forwardBeginning with protein synthesis in membrane-bound ribosomes, hepatocytes secrete proteins into the circulation via which of the following mechanisms? (A) Active transport through the cell membrane (B) Diffusion through the cell membrane (C) Transport by microtubules and exocytosis (D) Transport in vesicles and exocytosis (E) Transport through pores in the cell membranearrow_forwardWithout a properly functioning membrane, a cell would (a) not be able to give instructions to its organelles (b) not be able to hold a rigid shape (c) not be able to absorb sunlight (d) not be able to remove waste materialsarrow_forward
- Which of the following processes requires the cell to expend metabolic energy directly (e.g., from ATP)? (a) osmosis (b) facilitated diffusion (c) all forms of carrier-mediated transport (d) active transport (e) simple diffusionarrow_forward1. Select the two generic components (from below) that make up the extracellular matrix (ECM) of connective tissue (exclude fluids): A) Basement Layer B) Ground Substance C) Fibers D) Reticular Fibers E) Fibroblasts F) Collagen Fibers 2. From below, choose the three fiber types that can be found in the extracellular matrix (ECM) of connective tissue: A) Substance Fibers B) Elastic Fibers C) Collagen Fibers D) Muscle Fibers E) Supportive Fibers F) Reticular Fibers 3. From below, choose what the types of connective tissue lack fibers? A) Blood and Lymph B) Fluid and Synovial Fluid C) Bone Marrow and Mucous D) Cytoplasm and Saliva 4. Choose from below options, what type of epithelial tissue is found within the frog intestine? A) Simple Columnar Epithelium B) Simple Cuboidal Epithelium C) Stratified Squamous Epithelium D) Simple Squamous Epitheliumarrow_forwardThe trans epithelial electrical resistance (TEER) is a characteristic property of an epithelium. Which of the following statements best describes the TEER? a.) A high trans epithelial electrical resistance (TEER) is an indicator of a leaky epithelium in which paracellular diffusion of solute is likely to be high b.) A high trans epithelial electrical resistance (TEER) is an indicator of a tight attachment between the epithelium and the basement membrane in which diffusion of solute across the basolateral surface is likely to be low c.) A high trans epithelial electrical resistance (TEER) is an indicator of a tight epithelium in which paracellular diffusion of solute is likely to be lowarrow_forward
- During a microscopy exercise in the anatomy laboratory,a student makes the following observations about a tissuesection: (1) The section contains some different types ofscattered protein fibers—that is, they exhibit differentwidths, some are branched, some are long and unbranched,and their staining characteristics differ (some are seenonly with specific stains). (2) Several cell types withdifferent morphologies are scattered throughout the section,but these cells are not grouped tightly together. (3) Theexamined section has some “open spaces”—that is, placesbetween cells and the observed fibers in the section thatappear clear with no recognizable features. What type oftissue is the student observing? Where might this tissue befound in the body?arrow_forwardWhich type(s) of cell junctions contain actin filaments? Which contain(s)intermediate filaments? Which contain(s) integrins? Which contain(s) cadherins?arrow_forward-Mature parent cell Budding- cell 1 μη Test II. Examine the micrograph of the yeast cells. The scale bar under the photo is labeled 1 um. The scale bar works in the same way as a scale on a map, where, for example, 1 inch equals 1 mile. In this case the bar represents one thousandth of a millimeter. Using the scale bar as a basic unit, determine the diameter of the mature parent cell and the new cell. Start by measuring the scale bar and the diameter of each cell. The units you use are irrelevant, but working in millimeters is convenient. Divide each diameter by the length of the scale bar and then multiply by the scale bar's length value to give you the diameter in micrometers.arrow_forward
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