Four students were asked to match the function with the appearance of some cell structures in an animal cell.

The functions were listed by number.

1) mRNA passes through to the ribosome
2) organises microtubules to produce the spindle during cell division
3) synthesis of polypeptides

The appearances were listed by letter.

V- membranes which surround an enclosed inner cavity
W- non-membrane bound, spherical structures
X- a double membrane interspersed with pores
Y- non-membrane bound, cylindrical structures
Z- membrane-bound sacs, arranged as a flattened stack

Which student correctly matched the numbered function with the appearance of the cell structure?