what affects rate of diffusion
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What factors affect the rate of diffusion? Some of the factors that affect the rate at which particles diffuse include: the particle's molecular weight, temperature, concentration difference, diffusion distance, permeability and surface area.
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Cell Diffusion: How Do Substances Diffuse Through Cells Variables that Determine how Diffusion Works In order to determine how diffusion will happen, there are a lot of different variables that come into play. Some variables include the number of molecules that are inside the cell, the time it takes for the molecules to diffuse, the permeability of the molecule and cell membrane, and the size of the cell.
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What are the factors that affect the rate of enzyme catalyzed reactions? This is more kinetics than biology..Any how: There are several factors that affect the rate of reaction: 1) Concentration: Reaction rate increases with concentration, as described by the rate law and explained by collision theory. As reactant concentration increases, the frequency of collision increases.
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- Both have similar kinetics, meaning the mechanism by which they work is similar. In facilitated diffusion, a ligand moves through a membrane through a channel. If the concent … ration of ligand increases, the rate of diffusion increases until the channel becomes saturated and can work no faster.
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What factors can affect the rate of diffusion and how? the membrane to the other, the faster the rate of diffusion across that membrane.
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Biology, Eighth Edition (Raven) the rate of the diffusion begins slowly, but eventually accelerates. the concentration of particles on the outside of the cell increases. the concentration of particles on the outside of the cell decreases. a point is eventually reached where equal numbers are passing into and out of the cell. 4.
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- Thus the rate of diffusion is inversely proportional to the size of the particle. That is, a smaller particle will diffuse faster than a larger one. 2. Temperature: As the temperature increases, the amount of energy available for diffusion is increased.
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CONTENTS The rate of diffusion. The rate of diffusion is increased when: 1  The distance is decreased. 2  The surface area is increased. 3  The concentration difference (concentration gradient) is increased.
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Factors affecting Enzyme Activity 1 Changing the concentration of a substance only affects the rate of reaction if it is the limiting factor: that is, it the factor that is stopping a reaction from preceding at a higher rate.
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Gas exchange Thickness of the Exchange Surface: the thinner, the faster the rate of diffusion 3. Surface Area: the larger, the faster the rate of diffusion 4. Temperature: the highter the temp. (more kinetic energy) the faster the rate of diffuison 5.
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- Interpretation: Notice the rate of diffusion increases as the concentration gradient increases. If the concentration of molecules outside the cell is very high relative to the internal cell concentration, the rate of diffusion will also be high.
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Interactive STEM activities,freefor your classroom Explore the role of temperature in the rate of diffusion of a substance. Diffusion is the process of a substance spreading out from its origin. Molecules diffuse through random molecular motion. Diffusion is always happening, even when a system appears to have reached equilibrium, because molecules are always moving. When molecules are heated, they move faster.
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Diffusion and Osmosis The rate of diffusion across a plane is proportional to the concentration gradient across the plane and to the area of the plane. J = DA(CA-CB)/δX. J= Flow of solute from region A to region B in the solution (The Flux) D= Diffusion coefficient of the solute in a given solvent.
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osmosis The rate of osmosis is dependent primarily upon the difference in osmotic pressures of the solutions on the two sides of a membrane, the permeability of the membrane, and the electric potential across the membrane and the charge upon the walls of the pores in it.
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- Making the world better, one answer at a time. Diffusion is the eventual spread of molecules in a given space. The rate of diffusion is dependent on many things, such as temperature and permeability.
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DIFFUSION However, on the whole, the molecules of the substance migrate at a velocity much lower than the mean velocity of the molecular free motion. The higher the pressure, the denser is the molecule packing, the less is the free-path length, and the slower is the diffusion. The same occurs as molecule mass and size increase.
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Biology: Why do smaller cells have higher rate of diffusion? Report Abuse. Actually YES! the smaller the cell the higher rate of diffusion. this is because of a higher surface area to volume ratio of a smaller cell. If the vol of a large cube is 125cm^3,its dimensions are 5x5x5cm.
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DIFFUSION AND TRANSPORT However, with mediated transport, the rate of diffusion increases as concentration increases up to a point, and then there is no further increase in rate with increasing concentration (red (B) and blue (C) curves). At this point, we say the system is saturated.
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- various factors that affect diffusion kinetics in minerals. Finally, I discuss some. applications of the diffusion kinetic studies in minerals to the understanding of tectono-. metamorphic processes in major continent–continent collisional environments.
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- Many factors affect the rate of cellular respiration in living things. Amount of NutrientsThe more nutrients that are available to transform, the more energy results in the cellular respiration process.any factors affect the rate of cellular respiration in living things. Amount of NutrientsThe more nutrients that are available to transform, the more energy results in the cellular respiration process.
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Factors That Affect Respiration Rate The brain is the primary controller of respiratory rate. It receives input from sensors that detect oxygen and carbon dioxide levels in the blood. Blood pH -- a reflection of its relative acidity or alkalinity -- also influences respiratory rate.Activity level and the presence of drugs or alcohol are other important factors that affect respiratory rate.lood Carbon Dioxide. The amount of carbon dioxide in the blood is a primary influence on respiratory rate. As your activity level increases, your cells -- especially muscles cells -- produce increased amounts of carbon dioxide.
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Factors That Affect Reaction Rates Increasing the temperature of a system increases the average kinetic energy of its constituent particles. As the average kinetic energy increases, the particles move faster and collide more frequently per unit time and possess greater energy when they collide. Both of these factors increase the reaction rate.
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Why Does the Rate of Diffusion Vary With Molecular Weight & Temperature? Consequently, diffusion coefficients in liquids are directly proportional to the temperature of the fluid but do not depend on the molecular weight of the substance diffusing.
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Q & A: Water evaporation rate This effect will slow the evaporation down quite a a lot because the evaporation rate is proportional to the difference between the vapor pressure and the partial pressure of the substance, and diffusion can only take water away so fast.
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Factors that Affect the Chemical Reaction Rate There are several factors that can influence chemical reaction rate. In general, a factor that increases the number of collisions between particles will increase the reaction rate and a factor that decreases the number of collisions between particles will decrease the chemical reaction rate.or solids, the shape and size of the reactants makes a big difference in the reaction rate. Presence of Catalysts and Competitors. Catalysts (e.g., enzymes) lower the activation energy of a chemical reaction and increase the rate of a chemical reaction without being consumed in the process.