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Anatomy & Physiology: Cell Membrane and Cell Cycle Concepts

컨트롤 버튼이 '내비게이션' 모드로 변경되었습니다.
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  • Plasma membrane

    A selective boundary that controls what enters and leaves the cell.

  • Concentration gradient

    A difference in concentration that provides a direction for movement.

  • Diffusion

    Net movement of a substance from higher to lower concentration.

  • Osmosis

    Net movement of water across a selectively permeable membrane in response to solute concentration differences.

  • Facilitated diffusion

    Movement down a concentration gradient through a membrane protein without direct cellular energy.

  • Active transport

    Energy-dependent movement used to establish or maintain gradients.

  • Membrane potential

    An electrical difference across the membrane caused by unequal ion distribution.

  • Organelle

    A specialized structure inside a cell that performs a particular job.

  • Cell cycle

    The sequence of cell growth, DNA replication, preparation, and division.

  • Mitosis

    The process that separates duplicated chromosomes so daughter cells receive genetic material.