The cell wall acts as a gate
in a city, allowing substan-
ces to go in and out of the city.
The cell wall
The cell membrane is like
the police officers as they
both control what goes in
The cell membrane
The mitochondria is like
a construction site because
it builds up energy by breaking
down food for the cell to function.
The nucleus is like the factory office
(where all the information about
a city is) as it acts as the brain.
The Golgi complex is similar to
the ups company. They receive
protein from ribosomes and the
endoplasmic reticulum then it
packages and labels them for
delivery to areas inside and
outside of the cell.
The Golgi complex
Just as there is land all over a city that fills
up the whole city the cytoplasm fills up a cell
and allows substances such as food and
oxygen to pass through.
The chloroplasts and the power
plants share the same job. Chloroplasts
use its chlorophylls which use carbon
dioxide, water, and the sun's energy to
make food (this process is known as
photosynthesis) while the power plants
use the sun's energy to produce power
for the city.
The endoplasmic reticulum
The endoplasmic reticulum is
like the storage tanks in a cell
just like there is in a city.
Ribosomes are the organelles
that produce protein just like
there is the bakery shop that
make food for the city.
The vacuole stores waste and
extra food whereas in a city a
landfill (also called waste
disposal plant) stores waste and
extra food also.