levels of organization of life presentation based on one from
TRANSCRIPT
Levels of Levels of OrganizationOrganization
of Lifeof Life
Presentation based on one from http://people.hofstra.edu/geotrans/eng/ch8en/conc8en/envisys.html
AtomMolecule
MacromoleculeOrganelle
CellTissueOrganSystem
OrganismPopulationCommunity
EcosystemEcosphere
GAIA
ATOMS
• Smallest part of matter
• NON-living
Molecules
• 2 or more bonded atoms
• Form compounds
• NON-living
Organic Organic molecules carbohydrates,
proteins, lipids and nucleic acids.
Inorganic Inorganic molecules Water, Salts
And vitamins.
Macromolecule
• Very large molecules
•NON-living
Organelles
• “Tiny organs”
• Made of macromolecules
Cell
• Made of organelles
• Basic unit of structure & function
• LIVING
Tissue
• The same kind cell working together
• Living
A A tissuetissue is a group of cells of similar is a group of cells of similar
structure that perform a shared functionstructure that perform a shared functionAnimal tissues:
muscle
nervous
upper epidermal tissue
palisade mesophyll tissue
spongy mesophyll tissue
lower epidermal tissue
Tissues found in the leaf
Cross-section of a leaf
Slide taken from clickbiology.com
Organs
• Tissues that work together
• Living
An An organorgan is a structure made of a group of tissues is a structure made of a group of tissues
working together to perform specific functionsworking together to perform specific functions
Plant organs include the stem and the leaves
heart
stomach
lungs liver
brain kidneys
Slide taken from clickbiology.com
An organ system is a group of organs that An organ system is a group of organs that
coordinate to perform related functionscoordinate to perform related functions
In plants the shoot is an organ system consisting of leaves and the stem
lymphaticsystem
respiratorysystem
digestivesystem
excretory
system
reproductivesystem
muscularsystem
skeletalsystem
nervoussystem
endocrinesystem
circulatorysystem
Slide taken from clickbiology.com
Systems
• Organs that work together
• Living
Organism
• Entire living things (organisms)
• Usually made of systems
• May be a single cell
• Living
What type of organism is this?Unicellular or pluricellular?
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Population
• Same type of organism living together
Community
• Several populations living together
• Population interact
Ecosystem• A biotic (living) community plus the abiotic (nonliving) features
Biome
• Similar ecosystems on earth together
Ecosphere
• Whole living layer around the globe
• Includes abiotic features
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Who is GAIA?Who is GAIA?• In Greek mythology, Gaia was a Titan who
personified EarthEarth. She was the mother of several later Titans, including Cronus, Rhea, Iapetus (father of Atlas), and Oceanus. She was worshipped as the Earth mother the Earth mother goddess.
• http://robinfowler.suite101.com/who-is-gaia--a11020#ixzz1YJfggRBL
Can you write the levels of
organization of life?
AtomMolecule
MacromoleculeOrganelle
CellTissueOrganSystem
OrganismPopulationCommunity
EcosystemEcosphere
Now, say an example ofNow, say an example ofAtom
MoleculeMacromolecule
OrganelleCell
TissueOrganSystem
OrganismPopulationCommunity
EcosystemEcosphere
AtomMolecule
MacromoleculeOrganelle
CellTissueOrganSystem
OrganismPopulationCommunity
EcosystemEcosphere
Now, say an example ofNow, say an example of
AtomMolecule
MacromoleculeOrganelle
CellTissueOrganSystem
OrganismPopulationCommunity
EcosystemEcosphere
Now, say an example ofNow, say an example of
AtomMolecule
MacromoleculeOrganelle
CellTissueOrganSystem
OrganismPopulationCommunity
EcosystemEcosphere
Now, say an example ofNow, say an example of
AtomMolecule
MacromoleculeOrganelle
CellTissueOrganSystem
OrganismPopulationCommunity
EcosystemEcosphere
Now, say an example ofNow, say an example of
AtomMolecule
MacromoleculeOrganelle
CellTissueOrganSystem
OrganismPopulationCommunity
EcosystemEcosphere
Now, say an example ofNow, say an example of
AtomMolecule
MacromoleculeOrganelle
CellTissueOrganSystem
OrganismPopulationCommunity
EcosystemEcosphere
Now, say an example ofNow, say an example of
AtomMolecule
MacromoleculeOrganelle
CellTissueOrganSystem
OrganismPopulationCommunity
EcosystemEcosphere
Now, say an example ofNow, say an example of
• http://1.bp.blogspot.com/-u6U98UbaBjA/TViHmtnm_-I/AAAAAAAAEqg/YARN9kC4PPY/s1600/Green%252BEarth%252BEcology%252BwAl%252Btangledwing.png
• www.Biodeluna.wordpress.com
Based on: http://people.hofstra.edu/geotrans/eng/ch8en/conc8en/envisys.html with some slides added from clickbiology.com plus personal adds.