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Define the following terms that can be used to describe what effect a solution has on living cells: hypotonic, isotonic, hypertonic. Consider normal saline (used for IV solutions); it contains 150 mM NaCl. What is the osmolarity of normal saline? Use one of the terms in a sentence to describe how normal saline affects cells in the human body.

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Hubert Koch
Hubert KochLv2
28 Sep 2019

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Related questions

Consider a simple model cell, such as the one in Figure 3.6, that consists of cytoplasm and
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membrane and enter the cell. Is the 0.05 M CaCl2 solution hypotonic, isotonic, or hypertonic
relative to the osmolarity inside the cell? Describe what happens to the cell as it achieves
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some questions have sub category questions within them. thank you

1: what factors affect that rate of diffusion?

2: what conditions would produce the fastest rate of diffusion?

3: state in which direction water will flow ( into the bag, out of the bag, or in and out at an equal rate ). then justify your answeres using terms hypotonic, hepertonic and isotonic, sub category questions too please.

A: beaker contains 40 % sucrose solution; bag contains 40% sucrose solution

B: beaker contains 25% sucrose solution; bag contains 35% sucrose solution

C: beaker contains 40% sucrose solution; bag contains plain water

D: beaker contains 21% sucrose solution; bag contains 20% sucrose solution

4:? make three drawings on a seprate paper to showing the directions of water movement in the following conditions of tonicity /

a: the solution in the beaker is hypotonic to the solution in the bag

B: the solution in the beaker is herpertonic to the soltuion in the bag

C: the solution in the beaker is isotonic to the solution in the bag

5:?what is the tonicity of a surrounding solution whihc causes plant cells to undergo plasmolysis? Describe the appearance of these cells

?6: what happens to red blood cells when they are placed in a hypertonic solution?

7: How do the red blood cells appear compared to normal red blood cells?

1. Your goal is to make an isotonic intravenous solution for an emergency room patient who

has lost a lot of blood. The available solutes include glucose (300 mM), NaCl (150 mM), and
urea (300 mM). What solutes should she use to make up the IV solution with an osmolarity
of 300 mOsm (isosmotic), making sure that it will also be isotonic?

Explain your answer.
Assume that the cell is permeable to urea, glucose, but not to NaCl and that the osmolarity of
the cell is 300 mOsm.

2. If a 10% sucrose solution is separated from a 20% sucrose solution by a membrane
impermeable to sucrose, in which direction will net movement of water occur?
A) from the 10% sucrose solution to the 20% sucrose solution only
B) from the 20% sucrose solution to the 10% sucrose solution only
C) There will be no net movement of water in this case.
D) None of the answers are correct.

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