Transcript Types of Cells

Cells
A Characteristic of All
Living Things
Living
Non-Living
Family: flickr.com/photos/afroswede/327940628 ; Other images provided by Science: A Closer
Look (Maryland), pages 28 and 30 (MacMillan/McGraw-Hill, 2008)
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Generally Accepted
Characteristics of All Living
Things
 They reproduce (parents and offspring)
 They grow and develop (life cycles)
 They obtain and use energy (eat or make their
own food)
 They respond to their environment (move)
AND
 Are made of one or more units called …
CELLS
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Cells of
Multicellular Organisms
Animal Cells
Plant Cells
Images provided by Science: A Closer Look (Maryland), pages 28 and 30
(MacMillan/McGraw-Hill, 2008)
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Cells
 All living things are made of cells.
 Multicellular organisms are made of
different types of cells.
 Different types of cells look different and
do different things.
 Specialized cells group together to form a
tissue and to perform a specific function
(i.e., potato cells form potatoes and
muscle cells form muscles)
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Levels of Organization
Cells: The basic building block.
Tissues: Cells that work together
to perform a function.
Organs: Tissues that work
together to perform a function.
Organ System: Organs that work
together to perform a function.
Images provided by http://en.wikipedia.org/wiki/Image:Illu_muscle_tissues.jpg and Science: A Closer Look (Maryland), Toolkit CD and
page 30 (MacMillan/McGraw-Hill, 2008)
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Plant Cells
Plant cells have a cell membrane and a
more regular shape due to a stiff cell
wall. They have chloroplasts with
chlorophyll to help plants make their
own food.
Chloroplasts with
chlorophyll
Membrane
Wall
Images provided by Science: A Closer Look (Maryland), Toolkit CD 6
and page 30 (MacMillan/McGraw-Hill, 2008)
Plant Cell Example
Pine Needle Cells
http://upload.wikimedia.org/wikipedia/en/c/ce/
Pinus_pinea.jpg
Cross Section of Pine Cells
Copyright CNAP, University of York;
http://www.epobio.net/photos/cross_sec_pine.jpg
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Plant Cell Example
Potato Cells
http://upload.wikimedia.org/wikipedia
/commons/c/c8/Potato_and_cross_s
ection.jpg
http://www.uleth.ca/bio/bio1010/bio1010.htm
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Plant Cell Example
Onion Cells
http://upload.wikimedia.org/wikipedia/com
mons/1/1b/Onions.jpg
http://www.uleth.ca/bio/bio1010/bio1010.htm
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Plant Cell Example
Elodea Cells
http://en.wikipedia.org/wiki/Image:Elodea_canad
ensis2_ies.jpg
http://www.uleth.ca/bio/bio1010/bio1010.htm
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Animal Cells
The cells of humans and other animals
have a cell membrane, but they do not
have a stiff cell wall. They cannot make
their own food and do not have
chloroplasts. However, there is a
greater variety to their shapes.
Images provided by Science: A Closer Look (Maryland), Toolkit CD and page 28 (MacMillan/McGraw-Hill, 2008)
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Animal Cell Example
Blood Cells
Red Blood
Cell
White Blood
Cell
Red Blood
Cells
Platelet
http://upload.wikimedia.org/wikipedia/commons/2/24/Red_White_Blood_cells.jpg
http://upload.wikimedia.org/wikipedia/common
s/e/e6/Bleeding_finger.jpg
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Muscle cells must stretch
and grow.
http://upload.wikimedia.org/wikipedia/commons/0/0e/Weightlifting.jpg
http://en.wikipedia.org/wiki/Muscle
http://upload.wikimedia.org/wikipedia
/commons/7/74/Heart.jpg
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Nerve cells send signals
to the brain from the body.
http://upload.wikimedia.org/wikipedia/commons/b/ba/
Nervous_system_diagram.png
http://en.wikipedia.org/wiki: Smi32neuron http//:brainmaps.org
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Skin (Epithelial) Cell cover the body in a
thin layer. They regenerate quickly.
http://upload.wikimedia.org/wikipedia/commons/a/a9/Chica_cachetona.jpg
http://sac.edu/HomePages/nigro_dan/Cheek_cell.jpg
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Brain Cells
http://en.wikipedia.org/wiki/Image:Brain_
090407.jpg
http://www.nih.gov/
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Animal or Plant Cell?
http://en.wikipedia.org/wiki/Image:Chloroplasten.jpg
Plant Cell: Elodea
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Animal or Plant Cell?
http://en.wikipedia.org/wiki/Image:GFPneuron.png
Animal Cell: Nerve
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Animal or Plant Cell?
http://upload.wikimedia.org/wikipedia/commons/1/18/Spirogyra.JPG
Plant Cell: Spirogyra
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Animal or Plant Cell?
Permission granted by Rhodes EMU at http://www2.ru.ac.za/administrative/emu/gr10p7.htm
Animal Cell: Muscle
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Animal or Plant Cell?
Hedges, Kathryn. http://pics.tech4learning.com
Plant Cell: Potato
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Animal or Plant Cell?
Hedges, Kathryn. <http://pics.tech4learning.com>
Plant Cell: Onion
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Animal or Plant Cell?
http://www.uoguelph.ca/zoology/devobio/210labs/epithelial1.html
Animal Cell: Kidney
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Cell Review
 All living things are made of cells.
 Multicellular organisms are made of
different types of cells.
 Different types of cells look different and
do different things.
 Specialized cells group together to form a
tissue and to perform a specific function
(i.e., potato cells form potatoes and
muscle cells form muscles)
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