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just olya [345]
3 years ago
9

If cellwall allow everything to the cell than how can we say that cellwall protect the cell?

Biology
1 answer:
KatRina [158]3 years ago
8 0
The cell wall doesnt let everything in the cell membrane lets some things in the wall is tp protect the cell
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A red blood cell with an osmolarity of 300 mOsM (non-penetrating solutes) swells but does not lyse when placed in a 300 mOsM sol
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Answer:

See below for answer

Explanation:

<u>A. 200 mOsM NaCl</u>

This solution is hypotonic to the red blood cell (RBC) with penetrating solute. The RBCs will swell up and burst because the water will move into the cells.

<u>B. 400 mOsM urea</u>

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<u>C. 100 mOsM urea plus 200 mOsM NaCl</u>

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The RBCs will not lyse nor shrivel as again the solution is isotonic to the RBCs.

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Answer:

Answered below.

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