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). DNA holds the instructions for making proteins and regulating cellular processes, thus directing the cell's activities. The Golgi apparatus modifies, sorts, and packages proteins and lipids. Ribosomes are sites of protein synthesis. Mitochondria are the power - houses of the cell, generating ATP.

Answer:

nucleus