Osmosis and diffusion are two methods which work towards levelling the concentration gradient in the two given surfaces – the cell and the environment. Osmosis can be defined as the passive movement of water from a higher concentration to a lower concentration through a semi permeable membrane. Tonicity is how capable is a solution to change the size of the cell that is placed in it. Based on this measure, osmosis is divided into three groups: hypotonic, isotonic and hypertonic. A red blood cell
Various models and mechanism for the solvent and solute transport through reverse osmosis membrane have been developed and proposed by a number of investigators. The flow of solvent through the membrane is defined in terms of flux: The solvent flus of the permeate depends on the hydraulic pressure applied across the membrane, minus the difference in the osmotic pressure of the solutions of the feed and permeate side of the membrane. While the solute flux
POTENTIAL OF POTATO STRIPS LABORATORY REPORT REPORT BY: - CHIN YI JING (024492), CHOONG XIN YUN (024423), LEE GAH NI (024320), RENAD SADIG (024598), and SAI SAMHARINI D/O VIGNESWARAN (024429) Introduction In order for the cells to be able to maintain their metabolic functions, various biological molecules need to pass into and out of the cell. This can be achieved by transport processes, which can be broadly classified into passive and active transport. Osmosis is a type of passive transport in
humans need in certain amounts of Vitamin C in their daily diet. Vitamin C is an organic compound which helps fight diseases for human beings. It prevents cancer and is remarkably a key for human nourishment and for proper working of the body. Reports have demonstrated that utilization of food rich in vitamin C protects the human
Lakes are relatively small to large water bodies surrounded by land on all sides sustaining an ecosystem in and around them. Lakes have been an integral part of the ecological system by providing natural abode for plants, animals and microorganisms. Increase in urbanization and industrialization has led to the destruction and in the reduction of lakes in the city of Bangalore, Surviving lakes in Bangalore are reduced to cesspools due to direct discharge of industrial effluents and unregulated dumping
BIOFUELS Two problems roused the world’s concern in recent years. One is energy crisis caused by the squandering of petroleum fuel. Second problem is environmental problems such as greenhouse effect, global warming, etc. To deal with such problems, renewable sources, utilization technology and bioenergy production technology have been developed. Bioethanol as one of the biofuel can be blended in different proportions in automobiles with gasoline. Biobutanol is also a new biofuel (Liu, Wang, & Zhang