LABORATORY REVIEW
DIFFUSION AND OSMOSIS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It increases
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It stays the same
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It decreases
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Detailed explanation-1: -When a cell’s surface area increases, the amount of substances diffusing into the cell increases. As volume and surface area increase, the volume increases faster, so much so that the surface area available to allow substances in halves each time the cell volume doubles.
Detailed explanation-2: -There is a relationship between the surface area to volume ratio with the rate of diffusion. The smaller the surface area of an organism in relation to its volume, the lower the rate of diffusion.
Detailed explanation-3: -This has an effect on diffusion because it relies on the surface area of a cell: as a cell gets bigger, diffusion becomes less efficient. The solution to producing larger organisms is for them to become multicellular.
Detailed explanation-4: -The larger the surface area to volume ratio, the quicker the rate of diffusion takes place. The substance simply has more area to diffuse across, despite being the same volume.
Detailed explanation-5: -Diffusion is the movement of particles from an area of high concentration to low concentration, and this process is very common in a cell. The smaller the cube, the higher the efficiency of diffusion because the surface area to volume ratio is more proportional.