Microtubules have several other important functions. all but one is a function of cellular microtubules.
a) function in intracellular transport.
b) aid in cell division and chromosome movement.
c) aid in assembling amino acids during protein synthesis.
d) function in movement as they compose the cilia and flagella of animal cells.

The correct answer would be option C.

Microtubules are the polymers of globular protein tubulin. They have hollow and fibrous structure. They are one of the components of the cytoskeleton.

They serve several functions in the cell such as: provide support to a cell, help in intracellular transportation, movement of cellular organelles, movement of chromosomes during cell division, and cell movement by forming cilia and flagella.

However, they do not play any specific role in assembly of amino acid during protein synthesis.

This function is associated with tRNA which carries specific amino acid to the ribosomal site where protein synthesis takes place.