Download Unit 1 Summary Animal Cell Plant Cell

Unit 1 Summary
The Cell Theory
1. All living things are composed of one or more cells.
2. Cells are the basic units of structure and function in an organism.
3. Cells come only from the reproduction of existing cells.
Cell Structure & Function
Eukaryotic cells contain a membrane-bound nucleus and other organelles. Examples of
eukaryotic organisms are animals and plants.
Animal Cell
Plant Cell
Prokaryotic cells do not contain a membrane bound nucleus. An example is a bacterial cell.
Bacterial Cell
Organelle
Cell
Membrane
Nucleus
Structure
Function

Helps to maintain a chemical
balance between materials
inside and outside of the
cell.

Allows food and oxygen to
come into the cell and waste
products to move out.

Directs all the activities
inside the cell.

Contains the genetic blue
prints for the operations of
the cell in the form of
(chromatin/chromosomes
which contain DNA).
Cytoplasm
Endoplasmic
Reticulum
(E.R.)
Smooth E.R.

A gel-like material made out
of water, salts, and minerals.

Contains the organelles
within the cell.

A folded membrane that
moves materials around in
the cell like a conveyor belt.

Rough E.R. contains
ribosomes.

Smooth E.R. does not
contain ribosomes.

Structures that make
proteins in the cells.

Stacks of membrane-covered
sacs that package and move
proteins to the outside of
the cell.
Rough E.R.
Ribosomes
*shown
attached to the
rough E.R.
*Ribosomes can
also be located
suspended in
the cytoplasm
within the cell.
Golgi Bodies
Mitochondria

Where food molecules are
broken down and energy is
released.
Lysosomes

Contains chemicals that
digest, or breakdown,
wastes and worn-out cell
parts.
Vacuole

Fluid filled temporary
storage areas in cells.

They may store water, food,
and other materials needed
by cells while other vacuoles
store waste products.
Cell Wall

A rigid structure outside the
cell membrane that supports
and protects a plant and a
bacterial cell.
Chloroplast

Organelles in plant cells
where light energy is
changed into chemical
energy in the form of
sugar/glucose.

Chlorophyll is a green
pigment and one of the
chemicals in a chloroplast
that traps light energy .
The Light Microscope
Onion Cells
Stomach Cells
Rabbit Spinal Cord