Cell Membraine: Ways of Dissolving Molecules, A Paragraph

436 WordsJan 27, 20182 Pages
The cell membrane controls the movement of substances in and out of the cell. Oxygen and food move inside the cell through the membrane in the process of diffusion. Diffusion occurs when cells move from an area of high concentration to an area of low concentration. Osmosis is a type of diffusion; it is a diffusion of water through the cell membrane. Osmosis takes place when water particles move from a more concentrated area to a less concentrated area. For this process to take place there must be a concentration gradient, which consists of two different solutions in each side of the membrane. Hypotonic consists of a less concentrated solution and hypertonic consists of a more concentrated solution. The glucose syrup will be the hypertonic solution, thus the egg will shrink. When the egg is placed in a hypotonic solution the egg will shrink. The egg’s expansion occurs because of the process of diffusion. The egg without the shell will represent the cell and its membrane. The shell of the egg was removed by placing it in vinegar before starting the experiment. The eggshell is made of the mineral calcium carbonate, which dissolves in acids such as vinegar. During this process of dissolving it releases the carbon dioxide gas. After the shell is dissolved only the membrane with remain in the egg. In this case it will be a hypotonic solution because the egg is expanding and there is a higher concentration of water outside of the membrane and a lower concentration area inside,

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