cell junction Flashcards
What is the primary function of cell junctions?
Cell junctions are specialized structures that provide adhesion and communication between cells.
True or False: Cell junctions are only found in animal cells.
False. Cell junctions are found in both animal and plant cells.
Fill in the blank: ______ junctions physically link adjacent cells.
Gap
What type of junction is essential for the coordination of contractions in heart muscle cells?
Desmosomes
Which cell junction forms a seal between adjacent cells, preventing molecules from passing between them?
Tight junctions
What is the main function of adherens junctions?
To provide mechanical strength and help cells adhere to one another.
True or False: Hemidesmosomes are found in plant cells.
False. Hemidesmosomes are found in animal cells.
What is the role of gap junctions in cell communication?
Gap junctions allow for the direct passage of ions and small molecules between cells.
Fill in the blank: ______ junctions form a belt-like structure around the cell.
Adherens
Which cell junction is involved in the formation of the blood-brain barrier?
Tight junctions
What is the name of the protein that forms the core of desmosomes?
Desmoglein
What is the main function of gap junctions?
To allow for rapid communication and coordination between cells.
True or False: Desmosomes are primarily involved in cell adhesion.
True
Fill in the blank: ______ junctions are involved in mechanotransduction.
Desmosome
Which cell junction is important for maintaining the integrity of epithelial tissues?
Adherens junctions
