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) and controls most of the cell's activities by regulating gene expression. 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 ATP.

Answer:

nucleus