What is the difference between cells in onion peel and cells in spinach?

              Cells in Spinach
      : They have a chloroplast.
      : They have chlorophyll.
      : The chloroplasts in them helps them to trap solar energy  for          manufacturing food during photosynthesis.
             
              Onion peel Cell
      : They have colorless plastids.(leucoplast)
      : They do not have chlorophyll.
      : The leucoplast in them helps them in storage of food.
   
                          Hope this helps you:)