Which process could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings?facilitated diffusiondiffusionosmosisactive transport
Question
Which process could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings?facilitated diffusiondiffusionosmosisactive transport
Solution
The process that could result in the net movement of a substance into a cell, even if the substance is more concentrated in the cell than in the surroundings, is active transport.
Here's why:
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Active transport is a process that moves ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy. This is the only process that can move substances from a lower concentration to a higher concentration (against the concentration gradient).
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Facilitated diffusion, on the other hand, is a process of passive transport facilitated by integral proteins. It cannot move substances against a concentration gradient, so it wouldn't work in this case.
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Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration. It also cannot move substances against a concentration gradient.
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Osmosis is the diffusion of water through a selectively permeable membrane from a region of its lower concentration to a region of its higher concentration. It's not applicable to this scenario as it specifically involves the movement of water, not other substances.
So, the correct answer is active transport.
Similar Questions
What substance moves into the cell by diffusion?
The movement of a substance across a cell membrane against its concentration or electrochemical gradient.Group of answer choicesfacilitated diffusionactive transportosmosispassive transportdiffusion
If a cell requires a large amount of water to be moved to the intracellular fluid, which of the following processes would the cell use?Simple diffusionExocytosisEndocytosisCarrier-mediated diffusion
Movement of substances across the cell membrane occurs throughDiffusionOsmosisBulk transport All of the above
What is the missing word? __________ substances can move into or out of cells by diffusion.
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