3.3 Active transport Flashcards
1
Q
Why is a protein carrier needed for active transport?
A
The protein carrier changes shape to move the particle against the concentration gradient and allow it to pass through the cell membrane
2
Q
What is active transport?
A
The movement of particles through a cell membrane from a region of low concentration to a region of high concentration against a concentration gradient using energy from respiration.
3
Q
How do protein carriers obtain energy to allow particles past them?
A
They get energy from respiration
4
Q
What type of molecules does active transport work on
A
All types
