Excel 2007 : Specialized SUM

Hello again,

Sheet 1:

====A=========B

1 Orange========5
2 Banana=======10
3 Apple=========2
4 Orange========2
5 Apple=========6

Sheet 2:

In Sheet 2, i want to make a list with all the fruits, and at the next cell
of every fruit, i want excel to automatically sum the quantity of every fruit from sheet 1.
Of course based on the numbers, not the times a fruit name appears. In our example
it would be:


====A=========B

1 Orange========7
2 Banana=======10
3 Apple=========8



(The actual list will be pretty long)
Thank you!