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Cell-Cell Junctions in Medical Biology

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Questions and Answers

Where are tight junctions typically located in small intestinal epithelial cells?

At the basal part of the cells

At the apical part of the cells (correct)

Between the microvilli and the nucleus

At the lateral part of the cells

What is the main function of tight junctions?

To separate the nucleus from the cytoplasm

To create an impenetrable seal between the cells (correct)

To facilitate cell migration

To allow free passage of molecules and ions between cells

What type of proteins stabilize tight junctions?

Actin proteins

Occludin proteins (correct)

Cadherin proteins

Keratin proteins

Which technique is used to visualize tight junctions?

Transmission electron microscopy Signup and view all the answers

What is the function of anchoring junctions?

To provide minimal adhesive strength between cells Signup and view all the answers

Where are anchoring junctions located in intestinal epithelial cells?

Below the tight junctions Signup and view all the answers

What type of cell-cell junction is involved in the interaction between white blood cells and capillary endothelial cells?

Transient junctions Signup and view all the answers

Which type of junction is responsible for holding cells together?

Anchoring junctions Signup and view all the answers

What type of protein is involved in the interaction between white blood cells and capillary endothelial cells?

All of the above Signup and view all the answers

What is the function of gap junctions?

To allow for communication between cells Signup and view all the answers

What is the name of the type of anchoring junction that is associated with intermediate filaments?

Macula adherens Signup and view all the answers

What is the term for the process of white blood cells passing through the capillary wall?

Extravasation Signup and view all the answers

What is a consequence of losing E-cadherin expression in epithelial cells?

Metastasis formation of cancers Signup and view all the answers

What type of junctions are formed by actin microfilament-associated proteins?

Zonula adherens Signup and view all the answers

What is the name of the autoimmune disease that is characterized by the formation of autoantibodies against cadherin proteins?

Pemphigus Signup and view all the answers

What is the primary function of gap junctions?

To permit direct transfer of ions and small molecules Signup and view all the answers

What is the name of the type of junction that is characterized by a tight seal between cells?

Tight junction Signup and view all the answers

What type of filaments are associated with macula adherens?

Intermediate filaments Signup and view all the answers

Cell-Cell Junctions in Medical Biology

Choose a study mode

Podcast

Questions and Answers

Where are tight junctions typically located in small intestinal epithelial cells?

What is the main function of tight junctions?

What type of proteins stabilize tight junctions?

Which technique is used to visualize tight junctions?

What is the function of anchoring junctions?

Where are anchoring junctions located in intestinal epithelial cells?

What type of cell-cell junction is involved in the interaction between white blood cells and capillary endothelial cells?

Which type of junction is responsible for holding cells together?

What type of protein is involved in the interaction between white blood cells and capillary endothelial cells?

What is the function of gap junctions?

What is the name of the type of anchoring junction that is associated with intermediate filaments?

What is the term for the process of white blood cells passing through the capillary wall?

What is a consequence of losing E-cadherin expression in epithelial cells?

What type of junctions are formed by actin microfilament-associated proteins?

What is the name of the autoimmune disease that is characterized by the formation of autoantibodies against cadherin proteins?

What is the primary function of gap junctions?

What is the name of the type of junction that is characterized by a tight seal between cells?

What type of filaments are associated with macula adherens?

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