bio passive and actve transport
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Why can't you drink salt water?
It's hypertonic to your cells
Passive Transport
Requires NO energy, Movement of molecules from high to low concentration, Moves with the concentration gradient
What is diffusion?
When molecules move from high concentration to low concentration
Active transport across a cell membrane from low to high concentration, requires
energy(atp)
Active transport is the movement of large materials across a cell membrane from ______ to ______ concentration
low to high
Most of the cell membrane is made of...
phospholipids
An animal cell placed in a hypertonic (salty) solution will
shrink-get smaller
The function of the plasma membrane is....
to regulate what goes into and out of the cell
Hydrophilic means...
water loving