Movement Inside Cells

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------------------------------------------------- Movement inside cells Cells are a vitally important element to life, not only for humans, but for all organisms, as they are they are all composed of cells. Within the cell there are a variety of different movements which take place regularly in order to keep the cells functioning as normal. The following essay will explore further into the different types of movement in which happen within out cells in order for us and all other organisms to continue our lives as normal. In order for a cell to function, along with other molecules, glucose must be able to enter, in order to supply the cell with elements in which is used for respiration. As the cell membrane is naturally hydrophobic, in order to prevent molecules from being able to diffuse into the cell, when they may not need them to, however this also prevents the hydrophilic molecules of glucose from simply diffusing through membranes. These molecules therefore enter through facilitated diffusion, as glucose channels are present in the membrane of cells, which have a complementary shape in which only enables glucose to enter, down the concentration gradient between the inside and outside of the cell. On the other hand hydrophobic molecules such as fatty acids are freely able to diffuse through the cell bilayer until the concentrations of the molecules are equal between the inside and outside of the cell. Plant cells also need substances to be able to enter them in order to supply the plant with the things in which it needs in order to survive. In plants the most important cells in which play a part in the intake of substances, are the root hair cells. Their job is to supply the plant with water and nutrients from the soil and transport them to all of the plant as it is needed. These cells use active transport in order to intake minerals, such as potassium,

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