How can I change pairs?

I have pairs of A{i}=[ai bi]. How can I change them to pairs B{i}=[bi ai]. I like to use Matlab special features in matrices.

Answer 1

[Jos (10584)]

% the data
  A = {[1 2], [3 4] , [5 6]}
% the insight
  help fliplr
  help cellfun
% the engine
  B = cellfun(@fliplr, A, 'un', 0)

Answer 2

[Walter Roberson]

B = mat2cell( fliplr(cell2mat(A)), ones(length(A)), length(A{1});

[Ayob]

I check it,but it didn't work.

A{1}=[1 2]
A{2}=[3 4]
A{3}=[5 6]

B=mat2cell(fliplr(cell2mat(A)), ones(length(A)), length(A{1}))
*bold*
_??? Error using ==> mat2cell at 105
Input arguments, D1 through D2, should be vectors._