Study

Cell transport

  •   0%
  •  0     0     0

      Back   Restart
  • Why does the membrane have to regulate what enters and exits the cell?
    to maintain homeostasis
  • solute is a...?
    substance
  • ____ is the diffusion of water across a semipermeable membrane.
    osmosis
  • Water can move directly through the membrane or go through proteins called_____
    aquaporins
  • What is the function of the membrane?
    to regulate what enters and exits the cell
  • Semipermeable means...?
    it allows some substances to pass through the membrane but not others
  • The phospholipid bilayer of the cell membrane is...?
    semipermeable
  • There are substances _____ in the water during osmosis.
    dissolved
  • hyper means
    high
  • the cell membrane is a?
    phospholipid bilayer
  • ____ molecules cannot move straight through the membrane.
    sometimes
  • Isotonic is preferred in
    animals
  • _____ is number of molecules of a substance in a given area
    concentration
  • hypotonic is preferred in
    plants
  • Cells are not surrounded by and consist of ________water during osmosis.
    only
  • An hypotonic solution will
    grow (swell)
  • An isotonic solution will
    stay the same
  • When the concentration of the solution outside the cell is different than inside the cell, water will move in order to have _____ during osmosis?
    equal concentrations
  • What does cell transport refer to?
    the movement into and out of the cell
  • An hyperotnic solution will
    shrink
  • Iso means
    same
  • Facilitated diffusion is the movement of molecules _____ concentration using a protein
    from a higher concentration to a lower
  • Molecules move ____ the concentration gradient
    down
  • hypo means
    low
  • ____ is the movement of molecules from a high concentration to a low concentration
    diffusion
    • Your experience on this site will be improved by allowing cookies.