Download Active and Passive Transport

Active and Passive Transport
Have you ever ridden a bicycle down a long hill? Does it take a lot of
energy to go fast?
What about riding a bike uphill? Does it take a lot of energy to go fast?
For a cell, moving materials through the cell membrane through
_____________and osmosis is a lot like riding a bike __________.
It takes_____________ energy.
Passive Transport – is the movement of dissolved materials through a
cell membrane without using _____________ – like riding a bike downhill
2 Methods of Passive Transport:
 Osmosis
 Diffusion
Active Transport – is the _________________________ through a cell
membrane using _________________ energy – like riding a bike ______
It takes________ energy.
2 Methods of __________________Transport:
 Transport Proteins
 Transport by ____________________
Transport Proteins – these proteins “pick up” molecules ________ the
cell and carry them in, using __________ – ex: calcium, potassium,
sodium
Transport by Engulfing – the cell membrane __________and engulfs,
or encloses, a particle. Once the particle is engulfed, the cell membrane
___________ the particle and forms a vacuole within the cell. Have
you ever seen the movie “the Blob”? The Blog engulfs its victums!
**Active transport requires the cell to use its own energy, while
passive transport does not!**