introduction to sbi4u
TRANSCRIPT
Units of StudyHierarchy of OrganizationProperties of Living Organisms
Biochemistry Metabolic Processes Molecular Genetics Homeostasis Population Dynamics
Major subtopics: Cell biology Macromolecules Enzymes Membrane biology
Major subtopics: Thermodynamics Cellular respiration Photosynthesis
Major subtopics: DNA replication Transcription Translation Biotechnology
Major subtopics: Endocrine system Excretory system Nervous system
Major subtopics: Interaction Population Energy transfer
Biological organization is built on 12 levels Each level builds on the one below it
Activity: Brainstorm in your group the 12 levels of biological organization
Hint: one of the levels is the cell
Ecosystem
Community
Population
Organism
Organ system
Organ
Tissue
Cell
Organelle
Molecule
Atom
Subatomic
Atom
Subatomic
Molecule
Organelle
Cell
Tissue
Organ
Organ system
Organism
Ecosystem
Community
Population
Ecosystem
Community
Population
Organism
Organ system
Organ
Tissue
Cell
Organelle
Molecule
Atom
Subatomic
Population Dynamics
Biochemistry,
Molecular Genetics
Endocrine, Nervous,
Excretory Systems
Incre
asin
g C
om
ple
xity
Metabolic Processes
Growth & Development Metabolism Reproduction Homeostasis Response to Environment Evolutionary Adaptation Order
DNA direct the pattern of growth and development
Organisms take in energy and transform it to do work
Organisms reproduce their own kind Life comes from life
Ability to maintain an organism’s internal environment even though the external environment may fluctuate
An individual’s ability to change as a response to environmental stimuli
This differs from evolution in which a species changes over a long period of time
Life evolves as a result of the interaction between organisms and their environment
Consequence of evolution is adaptation of the organism to their environment
All other characteristics of life emerge from an organism’s highly ordered structure