ANIMAL PHYSIOLOGY
EXCRETION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They sink to the bottom of the cup
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They spread out
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They clump together
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Detailed explanation-1: -When hot water enters the single coffee particle, it dissolves the chemicals inside the grain and emulsifies oily substances. Then, these substances move into the grain and reach the outer surface of the coffee grain, through diffusion.
Detailed explanation-2: -In liquids, diffusion occurs. Diffusion can occur in liquids as well. Because particles in liquids may flow around and around each other, they eventually get evenly mixed.
Detailed explanation-3: -What does a ‘region with high concentration’ mean? An area with a SMALL number of particles.
Detailed explanation-4: -Q. What is diffusion? When molecules move from a low concentration to a high concentration. When molecules move from a high concentration to a low concentration.
Detailed explanation-5: -Which of the following describes the difference between simple diffusion and facilitated diffusion though cellular membrane? Simple diffusion moves particles through the phospholipid bilayer of a cell membrane, but facilitated diffusion moves particles through transport proteins.