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1.List 3 substances that MUST pass through the cell membrane. Explain.

2. Hospital patients are usually given intravenous fluid(IVs) to maintain proper levels of Water/salt in the body. If a manufacturer accidentally prepared a batch of IV fluid that had distilled water, harm to the patient could result. Explain how an IV filled with distilled water could harm patients.

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payalrajawatonkar

Explanation:

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.

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