Examlex
Which of the five graphs correctly shows the potential energy of a spring as a function of its elongation x?
Extracellular Matrix
A complex network of proteins and carbohydrates surrounding cells, providing structural and biochemical support to surrounding cells.
Facilitated Diffusion
A process of passive transport, facilitated by transport proteins, allowing molecules to move across cell membranes along a concentration gradient without energy expenditure.
Active Transport
The movement of substances across cell membranes against their concentration gradient, requiring energy.
Cotransport Systems
Mechanisms in cell membranes that transport two different molecules across the membrane in the same direction.
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