Created by
Mrs. Herman
Sept. 2012
Cell Theory
All living things are made of one or more
cells
 The cell is the smallest unit of life
 All new cells come from preexisting cells

Plant Cells
Animal Cells
The Parts (Organelles) of the Cell
Organelle: Cell Membrane
A flexible covering that protects
the inside of the cell from the
surrounding environment. These
are found in BOTH plant and
animal cells.
Organelle: Cell Wall
 Only
in plant cells
 A stiff structure
outside the cell
membrane
 Adds support to the
cell and helps the plant
keep its shape.
Organelle: Cytoplasm
A fluid inside a cell that contains salts and
other molecules.
What is a mitochondria?
The power plant of the cell. They
break down food molecules so that
the cell has energy to live.
What are chloroplasts?
Only in plants, they use light to
make food (glucose) from water
(H₂O) and carbon dioxide(CO₂)
during photosynthesis.
What are Vacuoles?
Bubbles that
float in the cell
that store food,
water and
waste
materials.
Organelle: Nucleus
Directs cell activities and
contains the DNA.
What is DNA?
DNA (deoxyribonucleic acid) is
an organism’s genetic material.
Cells come in many shapes