LABORATORY REVIEW
DIFFUSION AND OSMOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Increasing the surface area of the membrane
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Increasing the differences in concentration outside and inside the membrane
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Decreasing the temperature
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Detailed explanation-1: -Lower temperatures decrease the energy of the molecules, thus decrease the rate of diffusion.
Detailed explanation-2: -Lower temperatures decrease the energy of the molecules, thus decreasing the rate of diffusion.
Detailed explanation-3: -The diffusion rate will be influenced by the size of the particle, the temperature, and the steepness of the concentration gradient. The larger/heavier a molecule is the slower it will move. This will slow down the rate of diffusion.
Detailed explanation-4: -When temperature increases, the kinetic energy of the particles has increased. The increased motion of the particles causes them to diffuse faster. Therefore, at higher temperatures, the rate at which fluid particles will diffuse is faster than at lower temperatures.
Detailed explanation-5: -The greater the difference in concentration, the quicker the rate of diffusion. The higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly. The greater the surface area, the faster the rate of diffusion.