water potential

• how can a student investigated the water potential of potato tissue

  
  

  • cut pieces of the same size
  • find the mass of each piece before and after soaking
  • soak pieces of solutions for the same amount of time
  • blot dry before weight repeat for each solution
  • calculate the percentage change
• Explain the changes that occur when the mass increases.

  there is an intake of water down a water potential gradient by osmosis
• How to increase validity (WP)

  Make cylinders same length and diameter
• How method can be modified to reduce measurement errors

  Repeat experiment and find mean and Standard deviation check if there is a overlap