SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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an area of low concentration to an area of high concentration
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an area of high concentration to an area of low concetration
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Either A or B
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None of the above
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Detailed explanation-1: -A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.
Detailed explanation-2: -Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration. The overall effect is to equalize concentration throughout the medium.
Detailed explanation-3: -In cells, to maintain a balance (equilibrium) of substances inside, substances will move from high concentration to low concentration through plasma membrane. This means if contents inside the cell is more they will move to outside and vice-versa.
Detailed explanation-4: -Answer and Explanation: When molecules move down a concentration gradient, they move from more concentrated to less concentrated areas. Passive transport refers to diffusion across a biological membrane.