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Structures and Processes of Living Things
http://leavingbio.net/CELL%20DIVERSITY.htm
http://learn.genetics.utah.edu/content/begin/cells/scale/
Key Concepts
Cell functions, growth, and development
Energy transfer through photosynthesis Types of reproduction
Characteristics of Living Things
Grow Move Reproduce Get energy Use energy Get rid of waste Adapt to changes
Cells are Living Organisms They grow and die. They need energy, nutrients, air, and
water. They reproduce. They react to what's around them.
Key Idea #8
All living organisms are composed of cells – from one cell to many cells.
Types of Cells
Prokaryotic Cell does not have a nucleus
EukaryoticCell has a nucleus
(human cheek cells)
(onion skin cells)
(amoeba)
According to scientific evidence:
Organisms include all living things can be uni-cellular
– a one-celled organism– example: Protists, bacteria (monera)
can be multi-cellular– a many-celled organism– example: plants, fungus, animals
Amoeba (single-celled organism)
Googleimages.com
Euglena (single-celled organism)
googleimages.com
Paramecium (single-celled organism)
Elodea Leaf Cells
Single Celled Organisms in Pond Water Video (9 min)
Multicelled Organisms in Pond Water (3-4 minutes)
Animals and Plants are Multicelled Organisms
Plant and Animal Cells
Similarities: both cells have a cell membrane both cells have a nucleus
Differences: only plant cells have a cell wall only plant cells have chloroplasts
Cross-section of a Leaf
Cell Wall
Onion Skin
Skeletal Muscle
the muscle attached to the skeleton
White Blood Cells
Comparing Animal and Plant Cells
Human Cheek Cell
Onion Skin Cell
Nerve Cell
White Blood Cells
Red Blood Cells
Elodea Leaf Cell
Cell Facts Cells are the simplest unit of life. Cells are the building blocks of life. All cells are produced from other
cells. All living organisms are made of
one or many cells.
http://cellsalive.com/
A cell is like a city
http://biology.unm.edu/ccouncil/Biology_124/Summaries/Cell.html
The (Animal) Cell and the City Nucleus Mitochondria Ribosome Endoplasmic
Reticulum Golgi body Cell Membrane Vacuole Cytoplasm Lysosome
Control Center (City Hall) Produces energy (Power Plant) Producer of proteins (Factory) Transport system for proteins (Highway)
Package/distributes proteins (Post Office) Controls what goes in/out (Customs) Stores food/other stuff (Grocery Store) Lawns and atmosphere Breaks down food particles into smaller ones
(Recycle/Cleanup)
The (Plant) Cell and the City Nucleus Mitochondrion Ribosome Endoplasmic
Reticulum Golgi body Cell Membrane Vacuole
Cell Wall
Chloroplasts Cytoplasm
Control Center (City Hall) Produces energy (Power Plant) Producer of proteins (Factory) Transport system for proteins (Highway)
Package/distributes proteins (Post Office) Controls what goes in/out (Customs) Stores food/other stuff (water
tower/warehouse) Surrounds, supports, and protects the
cell. (City wall or border fence)
Uses sunlight to produce food (farm) Lawns and atmosphere