Skip to main content
Indietro

Cell Membrane Structure and Transport in General Biology

I pulsanti di controllo sono stati cambiati in modalità "navigazione".
1/14

Termini in questo insieme (14)

  • Passive transport

    Substances cross a membrane without the cell using energy, moving down their concentration gradient.

  • Active transport

    The cell uses energy to move substances across a membrane, usually against their concentration gradient.

  • Transport proteins

    Proteins that help substances cross the cell membrane, facilitating movement of molecules.

  • Endocytosis

    The cell takes material in by surrounding it with its membrane and forming a vesicle.

  • Exocytosis

    A vesicle joins with the cell membrane to release material outside the cell.

  • Amphipathic

    Having both a part that attracts water (hydrophilic) and a part that avoids water (hydrophobic), like a phospholipid.

  • Fluid mosaic model

    Describes the membrane as a flexible double layer of phospholipids with various proteins and molecules embedded that can move sideways.

  • Cholesterol

    A lipid that helps animal cell membranes stay flexible without becoming too fluid or too stiff.

  • Permeability

    How easily a substance can pass through a membrane.

  • Peripheral proteins

    Proteins attached to the membrane’s surface, not embedded inside it.

  • Integral proteins

    Proteins embedded within the membrane, often spanning part of it.

  • Transmembrane proteins

    Proteins that extend all the way through the membrane, spanning both sides.

  • Glycolipids

    Lipids with carbohydrate chains attached that help cells recognize one another.

  • Glycoproteins

    Proteins with carbohydrate chains attached that assist in cell recognition and signaling.