Cytoplasm is like the staff because they protect and keep the park alive.

The cell wall is like the wall of the park.

The nucleus is the security guards, because they control all activity.

The Golgi body is like the construction workers that renovate the park, because Golgi bodies change the proteins.

The vacuoles is like the food stores because it stores food and water

The smooth ER is like the semi trucks that deliver goods because the smooth ER transports goods and materials.