Terms in this set (10)
Is energy required for active transport?
What is active transport?
the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
What does active transport do?
Transports molecules against a concentration gradient through an integral protein transporter in the membrane.
What density of concentration does active transport do?
Low to High
What is a protein pump?
process of moving molecules from low to high concentration
What is endocytosis used for?
take in large molecules
What is exocytosis?
a process by which the contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane.
What is the difference between active transport and passive transport?
Active Transport (ATP) requires energy and Passive Transport (PTP) does not
What is passive transport?
The movement of materials across the cell membrane without using cellular energy
What does passive transport do?
Moves with concentration gradient, high to low concentration