Q. Assertion : Cells vary greatly in their shape
Reason : The shape of cell does not depend on the function they perform

 2880  239 Cell : The Unit of Life Report Error

Solution:

Cells vary greatly in their shape. They may be disc like, polygonal, columnar, cuboid, thread like, or even irregular. The shape of the cell may vary with the function they perform e.g., xylem vessels are long as they have to form long water conducting channels