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7) the environment is hypotonic because it is less concentrated than the inside of the cell
8.)the mass would decrease because the stuff inside the cell (which is more concentrated in comparison) would diffuse across the cell membrane into the environment in order to maintain equilibrium
9.) Diffusion in order to maintain equilibrium (moving things across a barrier from a more concentrated area to a less concentrated area in order to have an equal concentration on each side) does not require energy. However, moving matter out of the cell in Diagram C would require energy because it involves moving mass from a less concentrated area to a more concentrated area.
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How can we answer a question from a reading without seeing the text book?
Animal cells do not have a cell wall or chloroplasts but plant cells do. This is just one example there are several ways. <span />
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All organic molecules are made up of carbon compounds so we can say that the main atom or molecule is carbon.
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