plasmodesmata
Water crosses plasma membranes through specialized channels called diffusion and concentrated gradient.
Aquaporins.
The plasma membranes of two adjacent cells come in contact at special sites called gap junctions or desmosomes. These structures are important for cell-cell communication and adhesion.
A gap junction forms when a channel is created between two adjacent plasma membranes. This type of cellular junction allows for direct communication and passage of small molecules between the two cells.
intercalated discs containing gap junctions and desmosomes.
Ions can't diffuse across membranes, they must used channels to transport across
Water crosses plasma membranes through specialized channels called diffusion and concentrated gradient.
Aquaporins.
The plasma membranes of two adjacent cells come in contact at special sites called gap junctions or desmosomes. These structures are important for cell-cell communication and adhesion.
Proteins in plasma membranes help maintain the structure and regulate the functions of cells by serving as channels for molecules to enter and exit the cell, as well as facilitating cell signaling and recognition.
A gap junction forms when a channel is created between two adjacent plasma membranes. This type of cellular junction allows for direct communication and passage of small molecules between the two cells.
plasma membrane and other membranes are the same
no animal cells also have plasma membranes
Eukaryotic cells.
cell membranes and plasma membranes
intercalated discs containing gap junctions and desmosomes.
Sodium and potassium diffuse across the plasma membrane of cells through ion channels called voltage-gated channels. These channels open and close in response to changes in membrane potential, allowing sodium and potassium ions to flow down their electrochemical gradients.