A cell is like a restaurant, and the organelles inside act as some things would inside a restaurant.
Cell Membrane (controls what comes in/out of the cell): The cell membrane is equivalent to the entrance doors of a restaurant, they are how people get in and out.
Cell Nucleus (holds genetic information): The nucleus is equivalent to the computer in the restaurant that hold the information of all the purchases and customers.
Vacuole (storage center of food/water): The vacuole is equivalent to a freezer in a restaurant, where all the food is stored.
Mitochondria (powerhouse of the cell): The mitochondria is equivalent to the electric plant supplying electric to the restaurant.
Flaggella (allows cell to move): The flaggella is equivalent to the backside of a restaurant, as they both protrude from the main structure.
Endoplasmic Reticulum (transports materials of the cell): The ER is equivalent to the delivery van of a restaurant, transporting it's goods.
Golgi Bodies (packages the proteins of the cell): The golgi bodies are equivalent to the delivery men of a restaurant, packaging food before it is delivered.
Cytoplasm (where cell activities happen): The cytoplasm is equivalent to the restaurant floor, where all the serving is done.
Lysosomes (breaks down food): Lysosomes are the equivalent of the garbage disposal of the restaurant, breaking down discarded food.
Chloroplast (converts sunlight into energy): Chloroplasts could be the solar panels on top of the restaurant providing it with power.
Vesicle (stores/transports proteins): Vesicles are the equivalent to waiters, keeping tabs on food and delivering it.
Peroxisome (breaks down fatty acids): Peroxisomes would be like the grills in a restaurant, cooking the fat out of food.
Cytoskeleton (supports structure of cell): The cytoskeleton is like the walls of the restaurant, holding it up.
Plasmodesma (lines the cell walls): Plasmodesma is like the concrete that the walls of the restaurant are made of.
Chromatin (package DNA): The chromatin is similar to the computer program that processes all the data for the restaurant, e.g. pay, income, and expenses.
Centrioles (assist in cell division): Centrioles are like the people in charge of restaurant expansion and new location planning.
Microfilaments (rigid structure in the cytoskeleton): Microfilaments are like cement in the walls of the restaurant, being the small but rigid part of the wall.
Intermediate Filaments (rigid structure in the cytoskeleton, bigger than microfilaments): Intermediate filaments are like the bricks in the restaurant wall, a large majority of the structural support.