Examlex
Which of the following unbranched hydrocarbons is not saturated?
Plasma Membrane
The biological membrane that separates the interior of all cells from the outside environment, controlling the movement of substances in and out of cells.
Osmosis
The movement of water molecules through a semi-permeable membrane from a region of lower solute concentration to a region of higher solute concentration.
Lancet
A small, sharp, and typically pointed surgical instrument used for making small incisions or punctures.
Semipermeable
Describes a barrier or membrane that allows certain substances to pass through it while blocking others.
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