Molecular diffusion

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    Phospholipids Lab Report

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    Diffusion is high to low it involves no ATP nor does it need protein channels. Osmosis is a type of diffusion, it is the movement of water across a semipermeable membrane. Like diffusion there are no ATP but does need channels. There are a few terms to know when evaluating the levels of the solutes. Isotonic is when the levels are equal compared…

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    Egg Osmosis Essay

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    Movement of materials from areas of high concentration to areas of low concentration id diffusion. Osmosis is diffusion of water. Tonicity compares the environment inside of a membrane with the outside. When a membrane bound structure has a higher concentration of water on the outside of the membrane than the inside is hypotonic. Hypertonic is when a membrane bound structure has a higher concentration of water on the inside of the membrane than the outside. When something is isotonic the inside…

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    process of moving soluble molecules across a membrane is referred to as passive transport. For this type of transport chemical energy is not necessary. Two of the main types of passive transport that the human body utilizes are osmosis and diffusion. Diffusion is the movement of a hydrophobic substance across a semi-permeable membrane without the use of cell energy from a gradient area of higher concentration to an area (either inside or outside of the cell) with a lower concentration…

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    Why Are Cells So Small

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    “Why are cells so small?” The concept of this investigation is to examine which method of diffusion is the best explanation to why cells are small. The transpiration of cells nutrients apparat in different ways; one way is Osmosis. Osmosis is the diffusion of water. Active transport requires ATP to transport nutrients and then there is diffusion, which is the process of moving nutrients from an area of high concentration to an area of low concentration. The first explanation studied is that…

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    Haemodialysis Essay

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    Dialysis, however, does not correct the compromised endocrine functions of the kidney. Its treatments only replace some of these functions through diffusion (waste removal) and ultrafiltration (fluid removal). Principle Dialysis works on the principles of the diffusion of solutes and ultrafiltration of fluid across a semi-permeable membrane. Diffusion is a property of substances in water; substances in water tend to move…

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    1a. Osmosis: Osmosis is the diffusion of water across a selectively permeable membrane. Cell membranes have pores that are where molecules pass through the membrane. These pores are too small for some molecules like sugar to pass through, but are large enough for water molecules. These water molecules move across the membrane from areas of low concentrations of solute to high concentrations of solute. The different concentrations affect the water level. However, when a solution is dilute, the…

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    Bahliawah Abstract Throughout the process of this experiment, chicken eggs were used to test how well certain solutions would be absorbed. The objective was to determine the rate and direction of osmosis into and out of cells according to their diffusion gradients. During this experiment eggs were rolled on paper towels to blot the excess liquid and then weighed. They were then placed into one of six solutions immediately afterwards. In 15-minute intervals, the eggs were blotted and weighed…

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    found out about diffusion which can happen as active transport or passive transport. Diffusion is known as delivering a net development of solute particles from locales of higher focus to districts of lower concentration. Active transport is the development of an atom over the plasma layer. Active transport is when atoms move against their focus slopes. We discovered that dynamic transport requires vitality, and the motivation behind this test was to comprehend the procedures of diffusion and…

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    Diffusion in Agar Cubes Experiment Introduction Diffusion is a paramount process to organisms because molecules enter the body cells and waste products are removed. Diffusion is the movement of particles from regions with dense areas to regions with lower density. Diffusions rate can be determined by many factors this includes, the size, synthetic composition, concentration gradient, surface area to volume ratio. The independent variable in this experiment is the size of the agar, this means…

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    Porous Ceramics Essay

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    (IV) Porous Ceramics The concept behind nearly inert, micro-porous bioceramics (type2) is the ingrowths of tissue into pores on the surface or throughout the implant. The increased interfacial area between the implant and the tissues result in an increased inertial resistance to movement of the device in the tissue. The interface is established by the living tissue in the pores. This method of attachment is often termed biological fixation. It is capable of withstanding more complex stress…

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