The Effect Of Concentration On The Concentration Of A Solvent

2854 Words Jun 15th, 2015 12 Pages
Introduction:
All around and inside cells, substances are continuously being moved back and forth across the cell membrane. At any time, a material can have a higher or lower concentration on one side of the cell membrane opposed to the other. The concentration is the amount of solute in a solvent. In which the concentration gradient means that there is more solute in one part of a solvent than another. A solvent is something that dissolves in a solute to create a solution; for example, when salt (solvent) dissolves in the water (solute) to make salt water (solution). There are several types of transport options for a certain substance, but it depends permeability of the membrane, which determines what moves in and out of the cell. The types of cellular transportation that they used were diffusion, osmosis and filtration. Diffusion is the movement of a material from an area of a higher concentration to a lower concentration, while osmosis is the diffusion of just water. Filtration is a passive transport that moves water and other materials across the cell membrane by a pressure from the cardiovascular system (Michener 2015). These are extremely important to the body, because without these transports our cells and organs could not get the nutrients they need nor get rid of the waste that is toxic.
Diffusion can be simple or channel-mediated. Simple is when materials such as lipid-soluble compounds (alcohols, fatty acids and steroids) and dissolved gases (oxygen and carbon…
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