Final answer:
The cell utilizes a MTOC to organize microtubule polymerization because it plays essential roles in cell division and maintaining cell structure, organizing microtubule assembly and ensuring their proper arrangement.
Step-by-step explanation:
The cell utilizes a Microtubule-Organizing Center (MTOC) to organize microtubule polymerization because microtubules play essential roles in cell division and maintaining cell structure. The MTOC, such as the centrosome in animal cells or the amorphous MTOC in plant cells, serves as the point of nucleation for microtubule assembly.
During cell division, microtubules form the mitotic spindle that separates chromosomes. The MTOC provides the starting point for the microtubules that make up the spindle fibres. Additionally, microtubules help maintain cell shape and support intracellular transport.
By organizing microtubule polymerization, the MTOC ensures the proper assembly and arrangement of microtubules, allowing them to perform their various cellular functions effectively.