Download Cell to Organism overview

A
cell -
is the basic unit of structure
and function in all living things.
is what all living things are
made of
comes from a preexisting cell
A typical cell
is microscopic
contains DNA, cytoplasm, and a
cell membrane
is made up of smaller parts that
help the cell grow, reproduce, respond, and use
energy to carry out special jobs
Organization of Living Things
cell
tissue - a group of similar
cells working together
organ - a group of
different tissues working
together to perform
organ system special functions
many organs
working together
organism - highest level
of cell organization
The structure of a cell relates to
its function.
Red blood cells are different from
other cells.
 have a nucleus only when
they are first formed
 lose nucleus as they mature
 must be flexible so they
can enter tiny capillaries
White blood cells are different
from other cells.
 have extensions
that grab, trap,
and engulf harmful
particles that have
invaded the body
bacteria