Simple diffusion and facilitated diffusion both _______. move solutes with their concentration gradient Which of the following would decrease the rate of facilitated diffusion? decreasing the number of carrier proteins What happens to facilitated diffusion when the protein carriers become saturated? The maximum rate of transport will occur. What happened when sodium chloride was added as a solute in the left beaker? There was no change in the transport rate of glucose. Which of the following
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Permeability Name Lab Time/Date ___ Activity 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. Size of material and concentration 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? The molecules were too large to pass through. This is what I predicted on my Hypothesis. 3. Describe the results of the attempts to diffuse
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Lab One – Diffusion and Osmosis SECTION ONE: Methods Lab 1 – Diffusion and Osmosis can be broken down into four parts (A‚ B‚ C‚ and D). Lab 1A – Diffusion In this exercise‚ we tested diffusion through dialysis tubing. This was done through a demo with the teacher‚ rather than individually in groups. First‚ a piece of 2.5cm dialysis tubing was obtained. Then one end was folded and clipped securely so that a solution poured into the bag would not leak out. Next‚ the other side of the bag was
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The effect of molecular weight on the diffusion rates of Potassium permanganate (KMnO4)‚ Potassium dichromate(K2Cr2O7) and Methylene Blue^1 _________________ Group 3 Sec. X-1L February 6‚ 2012 ____________________ ABSTRACT The effect of molecular weight on the diffusion of substances were tested through the use of agar-water gel with three wells placed in a petri dish. Drops of three different substances namely: Potassium
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The relationship between shape and diffusion rate Aim- To investigate the relationship between the shape of an object and the time taken for a substance to diffuse to its centre. Hypotheses- Part A) The 5x5x2.5mm block will turn clear first as the Surface area to volume ratio is high and the 10x10x10mm block will take the longest to completely diffuse the Acid to its centre. Part B) The flat‚ rectangular block will be the first to completely turn clear due to its high Surface Area/Volume Ratio
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cell membrane. The cell Membrane is a thin protective coating around a cell that regulates what goes in and out of the cell. An important part of regulating this is passive transport. Passive transport is the movement of materials through membranes without any input of energy. One type of passive transport is diffusion. Passive transport is the diffusion of substances across a membrane. In diffusion‚ molecules will usually move from where the substance is more concentrated to where it is less
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believe that these are more than just tales; they believe that that the Bible is fact. The majority of people in the world who have had an education believe that a major flood happened that have shaped the world into what it is today. The evidence of the flood can prove that the biblical story is indeed fact. In Genesis‚ God explains how a flood occurred because of the evil in the world. God was protecting His people by having a “new start”. The flood lasted for over a year‚ destroying people‚ animals
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Diffusion Introduction Diffusion is the net movement of ions or molecules from a region of high concentration to a region of low along the concentration gradient until equilibrium has been reached. The steeper the gradient the faster the rate of diffusion. There are a few types of diffusion. Three (3) of those are: Facilitated Diffusion- refers to diffusion of substances across a cell membrane with the help of transport protein. Dialysis- refers to the diffusion of solutes across a semipermeable
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What Happened To the Hummer? Shawn Morris Wright Career College Mr. Burney EN102 – English Composition April 7‚ 2011 The HMMWV‚ pronounced Humvee‚ short for High Mobility Multipurpose Wheeled Vehicle‚ which went into preliminary design work in 1979‚ was intended as a mobile transport vehicle for American troops. (Burkeman‚ 2008) It gained popularity among civilians as support for the military grew. Versions of the Humvee‚ called the Hummer went into production for the general
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Increasing number of unmarried couples living together Change is a universal fact. They say‚ the only thing that remains constant in life‚ is change. And travelling through the centuries‚ the faith on the universality of marriage has shaken up. I would rather say the definition of love among the ‘present’ generation has also taken a different turn. With growing influence coming in from everywhere-television‚ internet or just by sheer interaction‚ the trends of relationships are changing. There
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