CELL STRUCTURES AND FUNCTION
CELL ORGANELLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the movement of waste materials out of a cell
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the movement of molecules from areas of low concentration to higher concentration
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the movement of molecules from areas of high concentration to lower concentration
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the movement of molecules across a membrane
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Detailed explanation-1: -Diffusion refers to the process by which molecules intermingle as a result of their kinetic energy of random motion. It is the net movement of molecules or atoms from a region of high concentration to a region of low concentration. This is also referred to as the movement of a substance down a concentration gradient.
Detailed explanation-2: -Final answer: Movement of molecules from their higher concentration to their lower concentration is called diffusion.
Detailed explanation-3: -Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration. For cell transport, diffusion is the movement of small molecules across the cell membrane.
Detailed explanation-4: -The process of movement of a substance (solid, liquid, or gas) from the region of higher concentration to the region of lower concentration so as to spread uniformly is called diffusion. In the process of diffusion the molecules of the one substance mix with the molecule of the other substance.
Detailed explanation-5: -Diffusion can be defined as the movement of molecules from an area of their higher concentration to an area of their lower concentration. So, the correct answer is ‘Movement of molecules from an area of their higher concentration to an area of their lower concentration’.