Which of the following most accurately describes tight junctions?They allow adjacent cells to share tensile stress by linking their intermediatefilament cytoskeletonsThey allow adjacant cells to control the passage of molecules between themThey bind actin filaments and assist cells to crawlThey allow cells to directly exchange small molecules with adjacent cells

Many tissues contain intercellular junctions between cells . Most kind of epithelium band some…

Which of the following most accurately describes tight junctions? They allow adjacent cells to share tensile stress by linking their intermediate filament cytoskeletons They allow adjacnt cells to control the passage of molecules between them They bind actin filaments and assist cells to crawl They allow cells to directly exchange small molecules with adjacent cells

Which of the following most accurately describes tight junctions? They allow adjacent cells to share tensile stress by linking their intermediate filament cytoskeletons They allow adjacnt cells to control the passage of molecules between them They bind actin filaments and assist cells to crawl They allow cells to directly exchange small molecules with adjacent cells

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter3: Cell Structure

Section: Chapter Questions

Problem 7SQ

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Similar questions

No animal cell has a ______. a. plasma membrane b. flagellum c. lysosome d. cell wall
Which of the following is a function performed by the cytoskeleton?a) provides structural support that determines cell shape and resists deforming forcesb) positions various organelles within the cell interiorc) provides a network of tracks over which materials like mRNA and organelles move within cellsd) serves as a force-generating apparatus that moves cells from one place to anothere) all of these choices
Which cell junctions form junctions between cells connected to the cytoskeleton? a. tight junctionsb. hemidesmosomesc. desmosomesd. focal adhesionse. gap junctions
Which of the following is most likely to have the greatestconcentration of smooth endoplasmic reticulum?a. a cell that secretes enzymesb. a cell that destroys pathogensc. a cell that makes steroid hormonesd. a cell that engages in photosynthesis
Which of the followings is not true about the function of the Tight Junctions? (LO- K8) They hold the cells together They act as a barrier They help maintain cell polarity They prevent lateral diffusion of proteins, ions, molecules They play an important role in maintaining the blood brain barrier They connect the adjacent cells intercellularly to the intermediate cytoskeletal filaments
Integrins are important in cell crawling because they anchor the leading edge of the cell to the surface it is moving over they are receptors for diffusible chemical ligands that determine the direction the cell will move in they cross-link actin filaments to microtubules and intermediate filaments of the cytoskeleton they serve as nucleating sites for polymerization of new actin filaments
Joins the intermediate filaments in one cell to those of a neighboring cell a) Adheren Junctions b)Hemidesmosomes c)Tight Junctions d)Desmosomes e)Gap Junctions
The difference between a gap junction and plasmodesmata is… Select one: a. Gap junctions are formed by microfilaments while plasmodesmata are formed by membrane b. Gap junctions are anchoring junctions while plasmodesmata are protein junctions. c. Gap junctions are formed by proteins making pores between two animal cells while plasmodesmata are formed due to incomplete cell division of membranes from adjoining plant cells.
Which of the following are part of adherens junctions? a. Anchor proteins b. Actin filament c. Cadherin dimers d. A and C e. All of the above
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.
Joins an actin bundle in one cell to a similar bundle in a neighboring cell a)Desmosomes b)Tight Junctions c)Hemidesmosomes d)Adheren Junctions e)Gap Junctions
Which of the following is not a component of the cytoskeleton?a. microtubulesb. actinsc. microfilamentsd. ciliae. cytokeratins