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TYPES OF CELLS
• We have more than 200 types of cells in
our bodies.
• There isn’t really such a thing as a typical
cell.
• Different cells are specialized for different
functions.
TYPES OF CELLS
• Some organisms are unicellular (one
celled)
• Some organisms are multicellular (many
celled)
• Some cells are prokaryotic (no nucleus)
ex. bacteria, archaea
• Some cells are eukaryotic (have a
nucleus)
ex. plants, animals, fungi, protists
CELL SPECIALIZATION
• Cells – Tissues – Organs - Organ Systems
• Tissues – group of cells working together
Ex. Bone tissue, blood tissue, connective tissue
• Organs – group of tissues working together
Ex. Heart – made of muscle, blood, and nerve
tissues
• Organ systems – group of organs working
together
Ex. Circulatory system – includes heart, blood
vessels, lungs
RED BLOOD CELLS
http://concise.britannica.com/ebc/art-70987/Photomicrograph-of-red-blood-cells-showing-abnormal-shape-characteristic-of
White Blood Cells
http://www.aamdsglossary.co.uk/i/c/1_white_blood_cells.jpg
http://concise.britannica.com/ebc/art-767/White-blood-cells-in-a-field-of-red-cells-Monocyte
LIVER CELLS
EGG and SPERM CELLS
BONE CELLS
http://micro.magnet.fsu.edu/primer/techniques/phasegallery/images/humanpathology/humanbone.jpg
http://www.swri.org/cms/Index.asp?ID=45
NERVE CELLS
http://www.wellcome.ac.uk/en/bia/gallery.html?image=25
http://library.thinkquest.org/28000/load_image.php3?id=32
http://butler.cc.tut.fi/~malmivuo/bem/bembook/02/fi/0202.gif
NERVE CELL (NEURON)
cytoplasm
nucleus
cell membrane
CHEEK CELLS
http://botit.botany.wisc.edu/images/130/Plant_Cell/Animal_cells/cheek_cells.html
http://micro.magnet.fsu.edu/primer/techniques/dic/dicgallery/cheekcellssmall.html
nucleus
cell membrane
cytoplasm
MUSCLE CELLS
http://www.dkimages.com/discover/Home/Health-and-Beauty/Human-Body/Muscle-System/Muscle-System-11.html
ELODEA (PLANT) CELLS
http://carnegieinstitution.org/first_light_case/horn/lessons/images/chlorop.jpg
http://camillasenior1.homestead.com/files/onionx10.gif
cytoplasm
ELODEA (SALT WATER)
cytoplasm
cell membrane
chloroplasts
cell wall
ONION SKIN CELLS
nucleus
cytoplasm
cell wall
ONION ROOT CELLS
LEAF CELLS
YEAST (FUNGI) CELLS
PROTIST (PROTOZOA)CELLS
PROTIST (ALGAE) CELLS
BACTERIA CELLS