LABORATORY REVIEW
DIFFUSION AND OSMOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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move substances from high to low concentration
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use the cell’s energy
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use diffusion or osmosis to move substances into the cell from low to high concentration
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use diffusion of osmosis to move substances into the cell from high to low concentration
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Detailed explanation-1: -The passive forms of transport, diffusion and osmosis, move materials of small molecular weight across membranes. Substances diffuse from areas of high concentration to areas of lower concentration; this process continues until the substance is evenly distributed in a system.
Detailed explanation-2: -Both diffusion and osmosis are passive transport processes, which means they do not require any input of extra energy to occur. In both diffusion and osmosis, particles move from an area of higher concentration to one of lower concentration.
Detailed explanation-3: -Passive transport, most commonly by diffusion, occurs along a concentration gradient from high to low concentration. No energy is necessary for this mode of transport.
Detailed explanation-4: -In osmosis, water moves from areas of low concentration of solute to areas of high concentration of solute.
Detailed explanation-5: -Osmosis is a form of passive transport when water molecules move from low solute concentration(high water concentration) to high solute or low water concentration across a membrane that is not permeable to the solute. There is a form of passive transport called facilitated diffusion.