Download There are two types of transport: ACTIVE and PASSIVE

There are two types of transport: ACTIVE
and
PASSIVE
Active transport is the movement of materials through a cell memrane using cellular
energy
Passive Transport is the movement of dissolved materials through a cell membrane
without using cellular energy. Diffusion and Osmosis is an example of passive transport.
Ex. Riding up a hill on a bike is an example of Active transport, because you have to use
energy to pedal up the hill. However, if you ride down a hill without pedaling, this is an
example of passive transport, because you are not using energy.
During Active transport, substances move from low concentration to high. That is why
they require the cells energy.
During Passive transport, substances move from high concentration to low, which doesn’t
require energy. This is because the materials are naturally forced into an area of lower
concentration.
Osmosis is the passive transport of water ONLY.
Diffusion is the passive transport of any other substances besides water.
Selectively Permeable:
-only some substances are allowed to enter and leave the cell membrane