http://www.cartage.org.lb/en/themes/Sciences/Zoology/AnimalPhysiology/Anatomy/Anatomy/animalcell.jpg
Cork Cells
http://www.ihcworld.com/histowiki/fetch.php?w=200&h=&cache=cache&media=epithelial-cells.jpg
Prokaryotic Cells
•
•
•
•
Bacteria
Simplest organisms
VERY small
No membrane-bound
organelles
•  No organized nucleus
(Do have DNA)
Parts of the Eukaryotic Cell
Animal Cell
Plant Cell
The basics…
Cytoplasm (Cytosol): The “juice” of the cell.
Nucleus: Contains DNA in the form of chromosomes
or chromatin.
NUCLEOLUS
Yup.
You should
draw this.
Nucleolus: Dark spot in the nucleus; where
ribosomes are made.
Cell Membrane: Flexible outer membrane that
controls what substances pass in and out of the cell.
Cell (Plasma) Membrane:
•“Selectively permeable” (lets only some things in and
out of the cell).
•Made of phospholipids and proteins.
•Two layers: lipid bilayer
Phospholipids: heads point out toward the water; tails point in to the
middle of the membrane
Peripheral Proteins: located on either surface of the membrane.
Integral Proteins: extend from one side of the membrane to the other.
Fluid Mosaic Model
Proteins “float” around the membrane like
icebergs moving through the water.
Plant cells only…
Cell Membrane
Cell Wall
Mmm-hmm…
this, too
Nucleus
Nucleolus
Chloroplast
Vacuole
Cell Wall: Rigid covering that lies outside the cell membrane;
supports and protects the cell.
Vacuole: Fluid-filled storage chamber. Very large in plant
cells; smaller in animal cells.
Chloroplast (Plastid): Site of photosynthesis.
Using sunlight, removes CO2 from the atmosphere and creates sugar
(glucose) and oxygen.
Plant or Animal Cells?
Can you
tell me…..
• What do plant and animal
cells have in common?
• What are their differences?