Download 01 Chapter 1 Organization of Life, Powerpoint Org of Life

Levels of
Organization
Mr. Pruett
Biology
Sumner HS
Theme: Organization
• “The whole is greater
than the sum of its parts”
I love my bikes
Novara Ponderosa
(“custom build”)
Trek 2300 Road Bike
Bike Comparison
• How are they
used?
• What is similar
about them?
• What is different
about them?
Tire Comparison
• How are they
used?
• What is similar
about them?
• What is different
about them?
Parts vs. Whole
• How will I perform on a bike ride with
just a tire?
• ...just a wheel?
• ...just handlebars?
• What do I need for a bike ride?
• All of the parts, properly working
together...
Levels of Organization
• One of the things that characterizes life
it its many levels of organization.
• Work alone for 3:00 using note/scratch
paper
• Goal: make a list, from small (atoms) to
large (the biosphere) of the levels of
organization that involve living things.
• Start with atoms, then ask yourself,
“What do atoms combine to form?”
• I have 11 levels...
Biosphere
Ecosystems
Communities
Populations
Organism/Individual
Organs
Cells
Organelles
Polymers
Molecules
Atoms
•
•
Levels of Organization
Atom: The smallest piece of unique
matter.
•
Molecule: Various combinations of bonded
atoms.
•
•
Ex: Carbon, Hydrogen, Oxygen, Nitrogen
Ex: Carbon dioxide (CO2), water (H20),
carbohydrate (C6H12O6)
Polymers: chains of repeating molecule
units linked together
•
Ex: Glycogen, proteins, DNA/RNA
•
•
•
Levels of Organization
Organelles: specialized structures inside
cells with specific jobs.
•
Ex: Nucleus, mitochondria, lysosome
Cells: basic building block of living things.
•
Ex: Nerve cells, muscle cells, skin cells.
Organs: Combinations of tissues to form
structures with specialized function for the
body.
•
Ex: Brain, heart, kidney, pancreas,
leaves
Levels of Organization
•
•
Organism: A single, living individual.
•
Ex: Human (homo sapiens)
Populations: the number of organisms from
one species in an area.
•
Ex: the number of marmots on Mt.
Rainier.
Levels of Organization
• Community:
all of the different species
interacting in an area.
•
Ex: all of the trees, insects, birds,
mammals, etc. on Mt. Rainier.
• Ecosystem: all of the living and non-living
things that interact in an area.
•
Ex: the Mt. Rainier community plus the
air, water, soil, etc.
Levels of Organization
• Biosphere:
• Ex: all of the ecosystems (or places
where living things are found ) on the
planet.