Biology Ch 1-4 Flashcards
3 domains of life
Bacteria
Archae
Eucaryuta
HydroCarbons
Not common in living things
Many organic molecules in cells have regions of carbon and hydrogen
Hydrogen Bonds
Attraction between the partial postitive on the hydrogen atom of water and partial negative charge on nitrogen atoms
Carbon
Backbone of life atomic #6
Makes proteins, DNA, Carbohydrates
Potential energy
Energy of matter because of location or structure
Types of data
Recorded observation and qualititave or quantitative
Energy
Capacity to do work
Non polar bonds
Between atoms with similar electronegativity
Intersubjectivity
The idea that inviduals can make the same observation through the same training
Feedback
Positive feedback -continuously increases {global warming}
Negative Feedback- our body
Buffers
Resist changes in pH
Important of homeostasis
Valence electrons
Valence shells
Electrons in the outer most shell
Experimental design
Replication- test as many subjects as possible
-proper controls
Eliminate as many controlled variables as possible
-draw a conclusion
Biodiversity
Diversity of life unified by DNA
Compounds
Substances of two or more elements in a fixed ratio
Solvent
Dissolves substances ( only polar substances)
Surface tension
Attraction of molecules of the waters surface area
8 unify Biology
Evolution Cell theory Emergent Properties Heritable Info Interaction with Environment Structure and function are correlated Feedback Biodiversity
Enantimers
Mirror images of each other
Organization
Living hints are complex but organized and orderly
Results from hydrogen bonds
Cohesion Surface tension Moderation of temperature Insulation of water through floating ice Solvent
4 essential elements
Carbon
Nitrogen
Hydrogen
Oxygen
Radioactive isotopes
Nucleus decay spontaneously
Natural Science
Developing falsibible hypothesis that can explain a phenomenon
Mole
6.0 x 10^23
Emergent Properties
All levels of organization are connected
Theories in science
Scientific theory- broad and supported by a large number of evidence
Reproduction
Organisms can produce offspring