OSMOSIS Flashcards
OSMOSIS IS A SPECIAL CASE OF…
DIFFUSION
FANCY DEFFINITION OF OSMOSIS
OSMOSIS IS THE NET MOVEMENT OF WATER MOLECULES ACROSS A PARTIALLY PERMEABLE MEMBRANE FROM A REGION OF HIGHER CONCENTRATION TO A REGION OF LOWER WATER CONCENTRATION
WHAT DOES OSMOSIS DO WITH SOLUTE
THE NET MOVEMENT OF WATER MOLECULES ACROSS A PARTIALLY PERMEABLE MEMBRANE FROM A REGION OF LOWER SOLUTE CONCENTRATION TO A REGION OF HIGHER SOLUTE CONCENTRATION
WHAT IS A PARTIALLY PERMEABLE MEMBRANE
IT IS A MEMBRANE WITH VERY LITTLE HOLES
THE WATER MOLECULES ACTUALLY PASS BOTH WAYS THROUGH THE MEMEBRANE DURING OSMOSIS, THIS IS BECAUSE…
WATER MOLECULES MOVE ABOUT RANDOMLY ALL THE TIME
WHEN THERE ARE MORE WATER MOLECULES ON ONE SIDE THAN ON THE OTHER, THERES A (…) IN THE REGION WITH FEWER WATER MOLECULES
STEADY NET FLOW
TISSUE FLUID SORROUNBDS THE CELLS IN THE BODY, WHAT IS IT MADE OF
WATER WITH OXYGEN, GLUCOSE
WHAT DOES TISSE FLUID DOES
ITS SQUEEZED OUT OF THE BLOOD CAPILLARIES TO SUPPLY CELLS WITH EVERYTHING THEY NEED
THE TISSUE FLUID WILL USUALLY HAVE A DIFFERENT CONCENTRATIOBN TO THE FLUID INSIDE THE CELL, BECAUSE…
THE WATER WILL EITHER MOVE INTO THE CELL FROM THE TISSUE FLUID, OR OUT OF THE CELL (BY OSMOSIS)
IF A CELL HAS LITTLE WATER…
THE SOLUTION INSIDE IT WILL BECOME QUITE CNCENTRATED (THE SOLUTION OUTSIDE IS MORE DILUTE)
IF A CELL HAS LOTS OF WATTER
THE SOLUTION INSIDE IT WILL BECOME MORE DILUTE, AND WATER WILL BE DRAWN OUT OF THE CELL AND INTO THE FLUID OUTSIDE (BY OSMOSIS)
