TRANSPORT

• active transport- net movement of molecules across a cell membrane form an area of low concentration to high concentration
• diffusion- net movement of particles from an area of high concentration to low
• osmosis- net movement of water molecules across a partially permeable membrane from an area of high concentration to low
• CP: cut cylinders of potato all of similar sizes
• CP: label separate test tubes with sucrose concentration in each one
• CP: dry potoe and record its starting mass and put it into the solution and leave for 15 minutes
• CP: remove patatoe set the scale to zero blot dry and record it mass to find out its mass gain
• control variable- volume, temperature, initial mass, tim
• independent variable- sucrose concentration
• dependent variable- mass