What is an Analogy?
Def. …a way of comparing two
things that are alike in some basic
way.
Example: Life is like a roller
coaster, it is full of ups and downs,
screams and laughs.
Cell City
Building a Cell
Analogy
How is a cell like a city?
For our sample analogy, we’re
going to compare a cell to a city.
We’ll look at the organelles and
compare them to the parts of a
city.
Cell Wall
The cell wall is
like a wall
around the city.
It keeps in what
is supposed to
be there, and
out what isn’t.
Cell Membrane
A cell membrane is
like the city limits.
These are more
flexible boundaries
that mark off the
borders of your
town. Police and
border guards
restrict who can
and can’t enter.
Nucleus
City hall is like the nucleus. All the
important decisions and plans for running
and building the town are made here.
Ribosome– Builders
Ribosomes build proteins like carpenters
and architects from the builders, engineers,
and architects build the structures that
support our cities.
Lysosomes
Like
lysosomes,
the waste
plants of a
city dispose
of used up
and damaged
materials and
wastes.
Endoplasmic Reticulum
The ER is like
the streets of a
city that
provide the
pathways for
materials to
move to other
parts of the
cell.
Golgi Complex
Like a town’s
post office,
the Golgi
complex
packages and
distributes
proteins.
Chloroplasts
The chloroplast
is like a donut
shop. It makes
the sugars that
the cell needs
to carry out its
functions.
Mitochondria
The
Mitochondria
is like a power
plant that
produces the
energy that
the town
needs.
Vacuole
A vacuole is like a
water tower. It
encloses and stores
the water and
other liquids the
plant needs to
survive.