(Solved) activity answers to physio Ex 9.0

lisa10

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11 years ago

What are the answers to the activity questions.
Activity 1
1) did any solutes move through the 20 MWCO membrane? Why or why not?
2) Did Na+ CL- move through the 50 MWCO membrane?
3) Describe how the size of a molecule (Molecular weight ) affects the rate of diffusion.
4) What Happened to the rate of diffusion when you increased the NA+CL- solute concentration?
If any one has all of the answers from all of the activity's and the review for exercise 1 for Physio ex 9.0. Greatly appreciated !!!

Source Human Anatomy & Physiology Laboratory Manual tenth edition. cat version

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et22

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11 years ago

thx so much! Slight Smile

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bio_man

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11 years ago

Quote from: lisa10 (11 years ago)

3) Describe how the size of a molecule (Molecular weight ) affects the rate of diffusion.

Increasing the size of the solute slowed down the rate of diffusion.

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bio_man

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11 years ago

Quote from: lisa10 (11 years ago)

did any solutes move through the 20 MWCO membrane? Why or why not?

No, none of the solutes tested passed through the 20 MWCO membrane. They were all too large.

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bio_man

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11 years ago

Quote from: lisa10 (11 years ago)

Did Na+ CL- move through the 50 MWCO membrane?

Yes, Na+ Cl– diffused through the 50 MWCO membrane.

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bio_man

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11 years ago

Quote from: lisa10 (11 years ago)

What Happened to the rate of diffusion when you increased the NA+CL- solute concentration?

Increasing the solute concentration increased the rate of diffusion.

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