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Two wires of the same material are stretched by equal forces,but L1 = 2L2 and d1 = 2d2,where L and d are the lengths and diameters of the two wires.The ratio of the stresses stress1/stress2 is
Metabolic Pathway
Series of enzyme-mediated reactions by which cells build, remodel, or break down an organic molecule.
Concentration Gradient
The gradual difference in the concentration of solutes in a solution between two regions.
Active Transport
The movement of substances across cell membranes against a concentration gradient, requiring energy input typically from ATP.
Diffusion
The process by which molecules move from an area of higher concentration to an area of lower concentration, contributing to the movement of substances within and between cells.
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