co transport

• what is co transport

  this is a type of facilitated diffusion that brings molecules and ions into the cell together on the same protein transport molecule
• give examples of molecules and ions are transported by cold transport

  glucose and sodium
• what is the first stage of co-transport

  a glucose of molecule and two sodium ions outside the cell attach to the carrier protein in cell membrane
• what happens after the glucose and sodium ions are attached to a carrier protein


  the carrier protein changes shape and deposit the glucose molecule and sodium ions inside the cell
• what is the difference between diffusion and co-transport

  it can move the course across the concentration gradient without the use of ATP
• what is another name for co transport

  secondary active transport
• give examples of where co transport takes place in the body

  in the small intestines and selective reabsorption in the kidneys
• give examples of substances transported by co transport

  glucose and sodium ions
• what are the properties of substances transported by co transport

  large polar and charged