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How Do Discs, Like the One in the Accompanying Figure

question 163

Multiple Choice

  How do discs, like the one in the accompanying figure, commonly store items? A)  in random locations anywhere between the center of the disc and the edge of the disc B)  in multiple pie-shaped sections that break a track into arcs C)  in a single track that spirals from the center of the disc to the edge of the disc D)  in multiple concentric tracks from the center of the disc to the edge of the disc How do discs, like the one in the accompanying figure, commonly store items?


Definitions:

Isotonic Solution

Solution that is equal in solute concentration to that of the cytoplasm of a cell; causes cell to neither lose nor gain water by osmosis.

Solute Concentration

A measure of the amount of a solute that is dissolved in a solvent, determining the solute's proportion in a solution.

Selectively Permeable Membrane

A membrane that only allows specific molecules or ions to pass through it by active or passive transport.

Osmosis

The movement of water molecules through a selectively permeable membrane from a region of lower solute concentration to a region of higher solute concentration.

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