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A concentration gradient is a difference in concentration across a space.
It affects diffusion and osmosis because both of these passive transports move down their concentration gradients, or from an area of high concentration to low concentration.
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FranGradient influences the rate of diffusion by creating a driving force that helps molecules move from areas of higher concentration to areas of lower concentration. A steeper gradient results in faster diffusion as the concentration difference between the two regions increases, leading to a higher rate of molecular movement.
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What can affect the speed of diffusion?
The speed of diffusion can be affected by the temperature, molecular size, concentration gradient, and the medium through which diffusion occurs. Higher temperatures typically increase the speed of diffusion, while larger molecules diffuse more slowly. Additionally, a steeper concentration gradient across the medium will result in faster diffusion.
What conditions affect diffusion?
Diffusion is affected by factors such as temperature, concentration gradient, molecular weight/size of particles, and the medium through which the particles are diffusing. For example, higher temperatures generally increase the rate of diffusion, while larger particles diffuse more slowly.
Define term gradient give definition of fick's law?
Gradient refers to the rate of change of a variable over a specific distance or direction. Fick's Law is a mathematical equation that describes the flux of a substance through a medium, considering the concentration gradient of the substance and the permeability of the medium. It is commonly used in fields like chemistry and biology to determine the rate of diffusion of molecules.
Does diffusion ever stop?
Diffusion will continue as long as there is a concentration gradient present. Once equilibrium is reached and the concentrations are equal throughout, diffusion will stop.
How can active transport differ from passive transport?
Active transport requires energy input to move molecules against their concentration gradient, while passive transport does not require energy and moves molecules along their concentration gradient. Active transport usually involves the use of transport proteins, such as pumps or carriers, while passive transport relies on diffusion or facilitated diffusion.
