Osmosis for Pre-AP Biology

Biology
Tutor: None Selected Time limit: 1 Day

A stalk of celery is placed in salt water, what happens?

I think the environment would be hypertonic, but is that correct? 

Then, is the actual celery stalk hypertonic, hypotonic, or isotonic?

Will the water flow in or out of the cell?

Then, when the celery stalk is placed in the salt water it becomes limp and rubbery? But why? 

Oct 5th, 2015

Thank you for the opportunity to help you with your question!

Since the celery stalk has a low salt concentration than the salty water, water moves out of the celery stalk cells into the environment.

Yes, the environment is hypertonic

The celery stalk is hypotonic

Water flows out of the celery stalk cells

The stalk becomes rubbery when placed in the salt water becoause its cells lose the water to the environment through osmosis. The cells shrink hence losing their rigidity

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 5th, 2015

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