Concept explainers
The function of the extracellular matrix (ECM) in animals is
- a. to provide strength.
- b. to provide structural support.
- c. to organize cells and other body parts.
- d. cell signaling.
- e. all of the above.
Introduction: Animal cells secrete an extracellular matrix (ECM) that provides support and helps in the organization of cells. ECM is composed of the major macromolecules, such as proteins and polysaccharides.
Answer to Problem 1TY
Correct answer: The function of the extracellular matrix in animals is to provide structural support, strength, organize cells and other body parts, and cell signaling. Hence, the correct answer is option e.
Explanation of Solution
Reason for correct answer:
The four functions of extracellular matrix (ECM) in animals are structural support, strength, cell signaling, and cellular organization.
ECM present in the skin of mammals prevents tearing. It provides protection to the joints and internal organs. The bones and cartilage of many animals are composed of ECM. Skeleton provide structural support as well as facilitate movement. ECM attached to the cells play an important role in the proper organization of cells. Cells in multicellular organisms sense their environment through ECM.
Option e. is given as “all of the above”
The four functions of extracellular matrix (ECM) in animals are structural support, strength, cell signaling and cellular organization. Hence, the correct answer is option e.
Reasons for incorrect answer:
Option a. is given as, “to provide strength”.
ECM present in the mammals provides protection to the joints and internal organs. Moreover, it also provides structural support, and plays an important role in proper arrangement of cells and cell signaling. Hence, option a. is incorrect.
Option b. is given as, “to provide structural support”.
The bones and cartilage of many animals are composed of ECM. Skeleton provide the structural support as well as it facilitates movement. Moreover, it also provides strength and plays an important role in the proper arrangement of cells and cell signaling. Hence, option b. is incorrect.
Option c. is given as, “to organize cells and other body parts”.
ECM attached to the cells play an important role in the proper organization of cells. Moreover, it also provides strength and structural support, and plays an important role in cell signaling. Hence, option c. is incorrect.
Option d. is given as, “cell signaling”.
Cells in multicellular organisms sense their environment through ECM. Moreover, it also provides strength and structural support and plays an important role in the proper arrangement of cells. Hence, option d. is incorrect.
Hence, the options a., b., c., and d. are incorrect.
Thus, the function of the extracellular matrix in animals is to provide structural support and strength. It also plays an important role in proper arrangement of cells and in cell signaling.
Want to see more full solutions like this?
Chapter 10 Solutions
BIOLOGY-TEXT
Additional Science Textbook Solutions
Genetics: From Genes to Genomes
Biological Science (6th Edition)
Campbell Biology in Focus (2nd Edition)
Campbell Essential Biology (7th Edition)
HUMAN ANATOMY
Fundamentals Of Thermodynamics
- The gap junctions of animal cells differ from the plasmodesmata ofplant cells in thata. gap junctions serve as communicating junctions and plasmodesmataserve as anchoring junctions.b. gap junctions prevent extracellular material from moving betweenadjacent cells but plasmodesmata do not.c. gap junctions allow for direct exchange of cellular material betweencells but plasmodesmata cannot allow the same type of exchange.d. gap junctions are formed by specialized proteins that form channelsthrough the membranes of adjacent cells but plasmodesmata areformed by connecting the plasma membranes of adjacent cells.e. All of the above are correct.arrow_forwardWhich is/are true of epithelial cells?a. They can only move uncharged molecules across their surfaces.b. They may have segregated functions on apical (luminal) and basolateralsurfaces.c. They cannot form tight junctions.d. They depend upon the activity of Na1/K1-ATPase pumps for much of their transport functions.e. Both b and d are correct.arrow_forwardWhich of the following is not a function of an epithelium?a. It is selectively permeable.b. It serves as a packing and binding material.c. The cells can produce secretory products.d. It is designed for physical protection.arrow_forward
- Match the following cellular features and activities with the properties of cells. Cell structure is highly complex and organized structurally. Cell posseses genetic information. Cells engage in metabolism. Cells sense and respond to changes in the environment. A. Mistakes in the genetic material are called mutation. B. Protein receptors on cell membranes receive specific ligands that "communicate" the presence of a simulus or stimuli. C. Cells contain "blueprints" for constructing cellular structures, for rrunning cellular activities and for making more of themselves. D. All living systems are capable of doing "work" in whatever form. E. Cell…arrow_forwardWhich of the following is not a part of animal cells' ECM? Select one: a. cellulose b. elastin c. Proteoglycans such as glycosaminoglycan (GAGs) d. Collagen e. Fibronectinarrow_forwardThe difference(s) between epithelial and single cells is that epithelia: OA. Allow absorption or secretion of molecules B. Allow an intracellular [K] that is different than that in single cells OC. Allow function without the need for a Na/K pump D. All of the abovearrow_forward
- Skeletal muscle cells are a. large multinucleate cells that arise by growth. b. large multinucleate cells that arise by fusion of smaller cells. C. small cells connected by many gap junctions. d. large cells with a single nucleus.arrow_forward9) 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. D. are cellular components for constitutive exocytosis that occurs between adjacent cells.arrow_forwardMatch the animal tissue example in column A with its description or function in column B and its tissue type in column C. Choices in column C can be repeated more than once. Write the letters only.arrow_forward
- Which of the following characteristics does not apply to skeletal muscle tissue? a. striated b. voluntary c. multinucleated d. spindle shaped cells e. All of the above are correctarrow_forwardWhich of the following statements is true? a.Cardiac muscle cells are found in the heart and large blood vessels. b.Cardiac muscle cells have many nuclei. c.Striated muscle cells are long and cylindrical with many nuclei. d.Smooth muscle cells have T tubules.arrow_forwardWhat type of cell is long fibers with striations and many nuclei which can be controlled voluntarily or involuntarily? a.skeletal muscle cells b.red blood cells c.stratified squamous epithelial cells d.nerve cells e.all of the cell typesarrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education