osmosis and active transport fill...

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Osmosis and Active Transport fill in.notebook 1 September 26, 2013 TRANSPORT We need to examine how these chemicals get in and out of the cell and we must examine the various strategies that organisms use to do this effectively. 1. PASSIVE TRANSPORT A spontaneous physical process that doesnt need any of the _____________ __________________ to make it happen: Two types: _______________ and _______________ 2 TYPES: _____________________________ is one of the most important organelles because it controls what goes in and out of the cell. structure of the cell membrane allows it considerable control over the materials that enter of leave the cell, with the exception of water the cell membrance keeps the inside of the cell the same eventhough conditions outside the cells may change. The ability of the cell to maintain a stable internal environment is called _________________________________ The cell membrane is composed of a double layer of _________ __________________________ ________________________ (water LOVING) heads facing inside and outside of cell with _________________ (water hating) tails between able to migrate sideways, giving membrane a "FLUID" nature which allows it to seal itself when broken __________ ways that materials can cross a cell membrane Passive Transport, Active Transport and Bulk Transport

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Osmosis and Active Transport fill in.notebook

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September 26, 2013

TRANSPORTWe need to examine how these chemicals get in and out of the cell and we must 

examine the various strategies that organisms use to do this effectively.

1. PASSIVE TRANSPORTA spontaneous physical process that doesnt need any of the _____________ __________________ to make it happen:

Two types:  _______________ and _______________

2 TYPES:

_____________________________ is one of the most important organelles because it controls what goes in and out of the cell.

­structure of the cell membrane allows it considerable control over the materials that enter of leave the cell, with the exception of water­the cell membrance keeps the inside of the cell the same eventhough conditions outside the cells may change.  The ability of the cell to maintain a stable internal environment is called _________________________________

The cell membrane is composed of a double layer of ___________________________________

­________________________ (water ­ LOVING) heads facing inside and outside of cell with _________________ (water­hating) tails between

­able to migrate sideways, giving membrane a "FLUID" nature which allows it to seal itself when broken

__________ ways that materials can cross a cell membrane

Passive Transport, Active Transport and Bulk Transport

Osmosis and Active Transport fill in.notebook

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September 26, 2013

http://highered.mcgraw­hill.com/sites/0072495855/student_view0/chapter2/animation__how_diffusion_works.html

DIFFUSIONDiffusion is a process by which a substance spontaneously spreads out in all directions from an area of ______ concentration to an area of _____ concentration over time.  Cells have a selectively ____________ membrane which allows some substances to pass through and prevents others from passing through.

Osmosis and Active Transport fill in.notebook

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September 26, 2013

OSMOSISThe diffusion of __________ through a selectively permeable membrane from a region of ___________ concentration of water to _________concentration of water is called osmosis.

Passive transport does not use _________________ and goes with the concentration gradient.  It could be through diffusion or osmosis.

2. ACTIVE TRANPORT uses _________________ because molecules are moving against the _______________________________  Purpose: rid of harmful or useless molecules

­stockpile important molecules­eliminate certain substances 

inside the cell that may be too large to simply diffuse to the outside

3. BULK TRANSPORT requires materials to be packaged in a vesicle  and then moved through the membrane by exocytosis and endocytosis

http://www.youtube.com/watch?v=K7yku3sa4Y8 

Osmosis and Active Transport fill in.notebook

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September 26, 2013

Concentration Gradient:

Permeable membrane:

Semi­permeable membrane

Non­permeable membrane 

Solvent

Solute

Isotonic

Hypertonic

Hypotonic

Endocytosis

Exocytosis

2.  Find a picture of endocytosis and exocytosis and copy and paste it to a Word Document