Osmosis

MOVEMENT OF SUBSTANCES OSMOSIS AND DIFFUSION Presented by Mary Anne Cristobal Biology

This is what happened… Area of high concentration Area of low concentration

RECALL ,[object Object],movement molecules higher lower

EXAMPLES OF DIFFUSION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DIFFUSION IN LIVING ORGANISMS ,[object Object],[object Object]

DIFFUSION IS A PASSIVE TRANSPORT Diffusion

OSMOSIS ,[object Object],[object Object],[object Object]

PARTIALLY PERMEABLE MEMBRANE ,[object Object],[object Object],[object Object],[object Object]

WHAT IS WATER POTENTIAL? ,[object Object],[object Object],[object Object]

DIFFUSION THROUGH A PARTIALLY PERMEABLE MEMBRANE (Diffusion of glucose molecules) starch glucose

CONCENTRATED AND DILUTE SOLUTION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What molecules are moving now? water molecules starch

QUESTIONS ,[object Object],[object Object],[object Object],[object Object]

OSMOSIS ,[object Object],[object Object],[object Object],[object Object],Video Clip1

[object Object],[object Object],[object Object]

What is osmosis? ,[object Object],[object Object],Water molecules Higher water potential Lower water potential Partially permeable membrane

CONDITIONS FOR OSMOSIS ,[object Object],[object Object],[object Object]

ASSIGNMENT ,[object Object],[object Object]

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