09-21-11
 1) True/False: Chloroplast are found in
plant cells. True
 2) What is the nucleus’ main job?
The “brain” of the cell—control the
cells inner workings
Agenda
1) Warm-Up 5 min
2) Cell Theory Notes II 25 min
3) Cell Organelle WS II 25 min
Organism
Organ
Tissue
Cell
Biology
Cell
Organelle
 The
cell is the basic unit of structure and
function in the human body.
 It can be specialized to do many things.
 Just as the objective of Santa’s shop is to
make toys the objective of a cell is to
make proteins.
What
might the
function of
this cell
be?
 The
cell consists of a mass of
cytoplasm surrounded by a cell
membrane.
 The cytoplasm contains tiny
structures called organelles. Each
organelle performs a specific
function for the cell.
The Organelles
 Large
organelle surrounded
by a double layered nuclear
membrane.
 It contains chromatin, made
of DNA, which controls the
cells activities. (Santa’s List)
Chromatin
Nucleus
Nucleus
Nuclear
Membrane
Nucleolus
(Ribosome Factories)
Found in nucleus. Dark area that
is important in making
ribosomes.
Where amino acids are assembled to
form proteins during protein synthesis.
 Located on the ER or floating in the
cytoplasm.

A
network of passageways made
from membranes that transports
proteins around the cell.
 Rough ER has ribosomes.
 Smooth ER has no ribosomes.
Endoplasmic Reticulum
A
series of saclike membranes where
proteins are packaged, stored, and
shipped off to their destinations.
 Rod-shaped
organelle, covered by a
double membrane, where cellular
respiration takes place. Burn sugar
(glucose) to make energy (ATP)
Mitochondria
Chloroplasts
(plant cells
only: Solar Power)
Double membrane sacs that contain
Chlorophyll. It can take light energy and
convert it into sugar (glucose) by
Photosynthesis.
 Vesicles(Sacs)
filled with digestive
enzymes and acid. They break down
and recycle old organelles in the cell.
 Vesicles
(Sacs) filled with enzymes
that break down toxins in the
cell
.
A
net-like framework that
gives the cell its shape.
 Composed of threadlike
proteins called microfilaments,
microtubules.
Cytoskeleton
Two
small cylinders made of
protein microtubules that
help the cell divide during
mitosis and meiosis.
 Short
hair-like structures
that wave and create
currents to move fluids
past a cell.
Cilia on a
Paramecium
 Long,
hair-like structures that
move a cell through a fluid.
Flagella
 Semipermeable barrier that
controls what enters and leaves the
cell
Cell Wall
(plant cells only)
Rigid layer of cellulose
outside the membrane
that supports plant cells.
Cell
Wall
Vacuoles
(water tower of cell)
•Stores water and dissolved
mineral cells. In plants there is
one large central vacuole.
Plant Cell
Animal Cell
The goal of Santa’s shop is to make The goal of a Cell is to
toys
make proteins
DUE TODAY:
• Organelle Color WS
“It’s never to late to be what you might have
been.”
George Ellis
DUE NEXT CLASS:
• Cell WS