Question

which is a structure that directs the cells activities?
nucleus
golgi apparatus
ribosome
mitochondrion

Explanation:

The nucleus contains the cell's genetic material (DNA) which holds the instructions for the cell's activities. The Golgi apparatus is involved in modifying, sorting, and packaging proteins and lipids. Ribosomes are the sites of protein synthesis. Mitochondria are the power - houses of the cell, generating energy in the form of ATP.

Answer:

nucleus