PARENTS: Nucleus protects cell DNA and parents protect there kids.

FLOOR: Floor lets people move freely and cytoplasm lets cells move freely.

SOLAR PANEL: Ribosome stores protein and solar panels store energy.

OUTLET: Mitochondria Power the cells to move and outlet is the power energy that powers things in the house.

FOOD, WATER: Vacuale store food and water.

DOOR: Keeps things in and out.