Active transport Flashcards
1
Q
define active transport
A
the movement of particles from an area of low concentration to an area of high concentration (against
their concentration gradient) across a cell membrane, using ATP and carrier proteins.
2
Q
What is bulk transport?
A
Bulk transport transports large substances across the cell membrane
3
Q
What is Endocytosis?
A
the bulk transport of large molecules into a cell. The
membrane invaginates and encloses the material being taken up into a vesicle, which pinches of .
4
Q
What is Exocytosis?
A
Exocytosis is the bulk transport of large molecules out of a cell. A vesicle fuses with the cell membrane, releasing its material.
