DRAW A CELL

This should be a generic animal cell, not a specific cell type, and include as many subcellular structures as you can think of, even if not all of them are likely to be found in the same cell at the same time.

Label each structure.

Be sure that each structure is distinctive: anyone looking at your drawing should be able to tell which structure is which, even without your labels.
Study Hint: a good way to study, especially in a study group, would be for each person to make such a drawing without labels, and then exchange papers.  Label each others' drawings.  See how many labels are correct. 
Are errors due to the labeler? -- in this case the labeler needs to study more
Are errors due to the drawing being unclear or incomplete, or incorrect? -- in this case the drawer needs to study more
Perhaps both types of errors occur ....

For each structure you should know - at least:
what does the structure look like?
is it bounded by a membrane?  a double membrane?  If so, then it should be drawn looking hollow!
does it have other peculiarities?  be sure to show these
is there a specific location that the structure is found, or might it be found anywhere?  what are the limitations on its location?
does it have structures within it that also must be drawn?
WHAT IS ITS FUNCTION?