22 Questions
Which type of cell junction is responsible for barrier function?
Occluding or Tight Junctions
What is the protein composition of gap junctions?
Connexin proteins: connexon channels
Which cell adhesion molecules are part of the IgG superfamily?
Selectins
Which type of junction separates fluids on either side with different chemical compositions?
Tight Junctions
Which proteins compose tight junctions?
Claudins and Occludins
Which type of junction allows small molecules to pass from one cell to another?
Gap Junctions
Which type of anchoring junctions link to the actin cytoskeleton?
Adherens Junctions
Which of the following is true about focal adhesions?
Focal adhesions occur between cells and extracellular matrix.
What is the function of integrins in focal adhesions?
Integrins bind to ECM components and link to actin cytoskeleton.
Which of the following is true about cell adhesion?
Cell adhesion precedes the formation of cell junctions.
What are the two distinct mechanisms of cell adhesion binding?
Homophilic binding and heterophilic binding.
Which type of anchoring junctions link to the actin cytoskeleton?
Adherens Junctions
Which type of junction separates fluids on either side with different chemical compositions?
Tight Junctions
Which of the following is true about cell adhesion?
Anchoring Junctions are a broader category than tight and gap junctions
Which of the following is true about focal adhesions?
Focal adhesions link to intermediate filaments
Which of the following is true about cell-cell adhesion?
Cell-cell adhesion involves the binding of epithelial cells to each other and to ECM proteins in the Basement membrane through specialized cell surface receptors.
Which of the following is true about cadherins?
Cadherins are a type of cell adhesion molecule that mediate cell-cell interactions.
Which type of junction is responsible for cell:cell interaction in the epithelial tissue?
Adherens junctions
Which proteins are involved in the formation of focal adhesions?
Integrins
What is the function of selectins in the process of inflammatory cell recruitment?
To initiate weak adhesion events with white blood cells
What initiates the formation of adherens junctions?
Tension created by cell attachment through cell surface receptors
What is the role of cell adhesion receptors in cell sorting mechanisms?
They allow for and direct cell sorting mechanisms in tissues
Test your knowledge on cell adhesion and how cells stay connected with this informative quiz. Explore topics such as cell junctions, barrier functions, communicating junctions, and more. Perfect for students studying biology or anyone interested in understanding the fascinating world of cell adhesion.
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