Answer:- Tight junction is present in the epithelial layer.they consist of the network of claudin and other proteins.they limit the transfer of ions throgh the cell.
Hence option E is correct.
55. Which cell junctions are most important for creating a "seal" or barrier in an epithelial...
Cell junctions which bind cells together at apical membranes are: a. gap junctions b. tight junctions c. all are correct d. desmosomes e. peroxisomes
Which of the following is the animal equivalent of plasmodesmata? O desmosomes O adherens junctions O gap junctions O tight junctions
19. Movement of molecules from one side of an epithelial layer to the other is prevented from going in between cells by A. Adherens junctions B. Tight junctions C. Gap junctions D. Desmosomes E. Hemidesmosomes 20. How are olfactory receptor cells depolarized upon binding to odorants? A. The odorant binds to a ligand gated ion channel . B. The odorant binds to a receptor tyrosine kinase C. The odorant binds to a G protein coupled receptor D. The odorant binds...
Which of the following cell junctions uses cadherin cell adhesion molecules to anchor the actin cytoskeleton? Tight junction Adherens junction Desmosome Hemidesmosome Gap junction
Which of the following cell junctions uses cadherin cell adhesion molecules to anchor the actin cytoskeleton? Tight junction Adherens junction Desmosome Hemidesmosome Gap junction
1- Proteoglycans are different from peptidoglycans and glycoproteins in that proteoglycans: a. are primarily chains of polysaccharides, with each polysaccharide covalently linked to one core protein b. are primarily chains of polysaccharides that are covalently linked to each other through a few amino acids c. are primarily proteins that are modified with a few polysaccharides d. are primarily proteins that are modified with one polysaccharide 2- Which of the following statements about tight junctions is FALSE? a. Tight junctions are...
Adherens junctions are ____ (select all). a. are formed by calcium dependent cadherin proteins b. form water tight connections between epithelial layers c. can alter cell shape by interacting with microfilaments d. generate forces to change cell shape by interacting with kinesin and dynein
choices for A: hemidesmosomes, focal contacts, desmosomes, adherens junctions choices for B: integrin, cadherin, occludin choices for C: intermediate filaments, microtubles, the actin cytoskeleton choices for D: focal contacts, desmosomes, edherens junctions, hemidesmosomes choices for E: integrin, cadherin, occludin choices for F: microtubles, intermediate filaments, the actin cytoskeleton Animal cells use a wide variety of junctions to connect cells to each other and to their ECM. The function of these junctions are determined by the proteins involved. Motile cells can...
52. The levels of different _________ change during the cell cycle to control events specific to that stage of the cycle. Rabs Kinetochores Cyclins Integrins 53. The adhesion molecule family that mediates cell to extracellular matrix adhesion is the Integrins Cadherins Ig Superfamily CAMs Receptor tyrosine kinases GPCRs 54. Because of __________ small molecules cannot travel between the cells of the epithelium to get from one side of the epithelium to the other Desmosomes Adherens junctions Gap junctions Tight junctions...
Which type of cell junction allows for small ions and molecules to pass from cell to cell? a. adhering junctions b. plasma membrain receptors c. tight junctions d. gap junctions