5.5 Vescular Transport Flashcards
What is vesicular transport?
Large macromolecules move in and out of cells using bubble-like vesicles formed from the cell membrane.
What is endocytosis?
Endocytosis is the process where the cell membrane indents to form smaller vesicles, bringing extracellular material into the cell.
What is phagocytosis?
a cell engulfs large particles or bacteria into a vesicle called a phagosome, which then fuses with a lysosome to digest the contents.
What is receptor-mediated endocytosis?
when specific molecules bind to receptors on the cell membrane, triggering vesicle formation to bring these molecules into the cell.
What are caveolae?
small flask-shaped indentations in the cell membrane that concentrate and internalize molecules or assist in cell signaling.
What is exocytosis?
vesicles inside the cell fuse with the cell membrane to release their contents outside the cell.
How does phagocytosis differ from endocytosis?
Phagocytosis engulfs large particles and forms large vesicles, while endocytosis indents the membrane to form smaller vesicles.
What are Rabs?
molecules that help vesicles dock onto the membrane
What are SNARES?
facilitate membrane fusion during exocytosis
What process do cells use to bring proteins into the cell?
Endocytosis or phagocytosis
What process do cells use to bring proteins out the cell?
Exocytosis
