Ch3a: Plasma Membrane and Transport Flashcards
What helps prevent molecules from passing through extracellular space between adjacent cells
tight junctions
What is a type of anchoring
desmosomes
What is known as a communication junction?
Gap Junctions
What is present in electrically excitable tissues?
gap junctions
What is abundant in tissues subjected to great mechanical stress?
Desmosomes
T/F: In osmosis, movement of water occurs toward the solution with lower solute concentration?
F
T/F: A process by which large particles may be taken into cell for food, protection, and disposing of old/dead cells is called phagocytosis
T
T/F: Diffusion is always from areas of greater to areas of lesser concentration
T
T/F: Facilitated diffusion always requires a carrier protein
F
T/F: The cell (plasma) membrane normally contains substantial amounts of cholesterol
T
Water may move through membrane pores constructed by transmembrane proteins called?
aquaporins
The process of discharging particles from inside a cell to the outside is called?
exocytosis
A red blood cell would swell if its surrounding solution were?
hypotonic
A “ “ is a channel between cells
connexon
