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08/14/20
Osmosis 14
Osmosis is a "special kind of diffusion". It's when water diffuses from a
concentrated area to a less concentrated area through a partially
permeable membrane (i.e. one that allows water to move through but not
anything else):
Water Sugar solution
In this example the water
molecules will move from left to
right (along the concentration
gradient) and gradually dilute
the sugar solution.
This is how water moves into
root hair cells…read more

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08/14/20
14
Strong
sugar
solution
Potato cells
Medium
sugar
solution
Weak
sugar
solution…read more

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08/14/20
Active Transport 14
Active transport is when substances are absorbed _______ a
concentration gradient (like a ball being rolled ___ a hill). This
takes place in the opposite direction to normal _______. This
is how nitrates are taken in by root hair cells:
Root hair cell Root hair
already has a large cells "pull"
concentration of more nitrate
nitrate ions ions in
This process needs ________ (just like rolling a ball up a hill
would). This energy is provided by __________.
Words ­ energy, up, respiration, diffusion, against…read more

Comments

mclarenguy22

It's clear, but could do with a little more terminology and more specification. It should include keywords such as;

- water molecules (not "water")

- particles (not "something" travels from area of high concentration...)

- absorb (not "pull" the nitrate ions)

There is room for improvement but I appreciate your effort. :)

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