Cell Membrane 3

1. 1True/false: cell junctions consist of multiprotein complexes that provide contact between neighboring cells or between a cell and the ECM

   1. ATrue
   2. BFalse
2. 2Which of the following is a function of cell junctions?

   1. Areduce stress placed upon cells
   2. Bbuild up the paracellular barrier of epithelia
   3. Cbond cells together
   4. Denable communication between neighboring cells
3. 3Where are cell junctions particularly abundant?

   1. Aepithelial tissues
   2. Bdermis
   3. Cbasal lamina
   4. Dconnective tissues
4. 4True/false: it is the matrix rather than the cells that bears most of the mechanical stress to which tissue is subjected

   1. ATrue
   2. BFalse
5. 5True/false: direct attachments between cells are made by cell-cell junctions in the connective tissues

   1. ATrue
   2. BFalse
6. 6Which of the following is a type of cell junction?

   1. Aconnective junction
   2. Btight junction
   3. Cgap junctions
   4. Dloose junctions
   5. Ecell-cell anchoring junctions
7. 7True/false: all cells contain tight and cell-cell anchoring junctions but gap junctions are more specific

   1. ATrue
   2. BFalse
8. 8Which of the following is a type of cell-cell anchoring junction?

   1. Aactin linked
   2. Bhemidesmosomes
   3. Cdesmosomes
   4. Dadherens
9. 9Which of the following is a type of cell-matrix junction?

   1. Adesmosomes
   2. Bhemidesmosomes
   3. Cadherens
   4. Dactin linked
10. 10Which of the following is TRUE of tight junctions?

    1. Afound in epithelial cells
    2. Bmostly at the basolateral membrane
    3. Cmostly at the apical membrane
    4. Dseal the gap between epithelial cells

11. 11True/false: tight junctions consist of cadherins

    1. ATrue
    2. BFalse
12. 12True/false: cell-cell anchoring junctions use cadherins as transmembrane adhesion proteins

    1. ATrue
    2. BFalse
13. 13Which of the following belong to the cadherin family?

    1. Aadherens
    2. Bdesmosomes
    3. Cfocal adhesions
    4. Dhemidesmosomes
14. 14Which of the following belongs to the integrin family?

    1. Ahemidesmosomes
    2. Badherens
    3. Cfocal adhesions
    4. Ddesmosomes
15. 15True/false: adherens junctions help model the shape of multicellular structures

    1. ATrue
    2. BFalse
16. 16True/false: desmosomes allow the passage of small water-soluble molecules from cell to cell without having to pass through the plasma membrane

    1. ATrue
    2. BFalse
17. 17True/false: desmosomes provide mechanical strength to the cells

    1. ATrue
    2. BFalse
18. 18True/false: integrins are activated after binding ECM ligands or intracellular activator proteins and produce intracellular signals than can influence almost any aspect of cell behavior

    1. ATrue
    2. BFalse
19. 19True/false: focal adhesions anchor actin filaments in cell to ECM

    1. ATrue
    2. BFalse
20. 20True/false: hemidesmosomes anchor actin filaments in a cell to ECM

    1. ATrue
    2. BFalse

Description

Exam 3 Cell Bio Quiz on Cell Membrane 3, created by Gabrielle Reece on 09/11/2020.

Author

Gabrielle Reece

Language

English

Views

2

Tags

cell bio exam 3

Rating

No ratings yet

Rate this quiz

Rate this quiz

More on Cell Junctions