1. Membrane protein-mediatecl movement of a substance across a membrane against a concentration gradient. It is an energy-requiring process.

    Membrane protein-mediatecl movement of a substance across a membrane against a
    concentration gradient. It is an energy-requiring process.

    See less
    • 1
  2. 1. Phagocytosis, 2. Potocytosis ( = pinocytosis) and 3. Receptor mediated endocytosis.

    1. Phagocytosis, 2. Potocytosis ( = pinocytosis) and 3. Receptor mediated endocytosis.

    See less
    • 1