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Know the characteristics of life
- Organization,Complexity,Sensitivity,Growth-Development- and Reproduction,Energy Utilization, Homeostasis, Evolutionary Adaptation TERM 2
Know the different categories of organization
DEFINITION 2 -Cell, Organism, Population, Ecosystem, Biosphere TERM 3
deductive reasoning
DEFINITION 3 Deductive reasoning- applies general principals to predict specific results TERM 4
inductive reasoning
DEFINITION 4 Uses specific observations to construct general scientific results TERM 5
scientific method
DEFINITION 5 scientific method- Ask a question, Research, Hypothesise, Experiment, Analyze, Draw a conclusion, Report
hypothesis
hypothesis- a proposed explanation for a phenomenon TERM 7
theory
DEFINITION 7 summarizes a hypothesis or group of hypotheses that have been supported with repeated testing TERM 8
Who was Charles Darwin? What was his
contribution to science?
DEFINITION 8 -A scientist who observed differences in related organisms-He proposed natural selection as a mechanism for evolution TERM 9
natural selection
DEFINITION 9 The process of life forms adapting to their environmental pressures who go on to produce greater numbers of their kind (survival of the fittest) TERM 10
What are the unifying themes of biology?
DEFINITION 10 cells are the basic unit of life, the structure of molecules, macromolecular complexes,cells and even higher levels of organization are related to their functions
Know why covalent bonds stabilize molecules
-covalent bonds tend to fill each electron energy level TERM 17
What is a polar covalent bond? Nonpolar
covalent bond? Give examples
DEFINITION 17 -polar covalent bond-electrons are shared unequally, one atom is slightly negative, one slightly positive-a covalent bond that shares equal number of electrons TERM 18
What 3 factors influence chemical
reactions?
DEFINITION 18 -Temperature, Concentration or reactants and products, and catalysts TERM 19
Define cohesive and adhesive. Why are they
different
DEFINITION 19 -Cohesive- allows water molecules to be attracted to eachother-adhesive- attraction for other polar substances-Cohesion only involves attraction to the same substances TERM 20
What are the properties of water
DEFINITION 20 High: specific heat, heat of vaporization, Solid is less dense than liquid, polar molecules are soluble in water, water tends to exclude non polar molecules
What are acids? Bases? Buffers?
-acids- Any substance that dissociates in water to increase the [H+]-bases- A substance that combines with [H+] to when dissolved in water-buffer- a substance that resists changes in pH TERM 22
What is the formula for pH?
DEFINITION 22 pH= -log [H+] TERM 23
Know the 4 major groups of macromolecules
DEFINITION 23 carbohydrates, nucleic acids, proteins, lipids TERM 24
What is the difference between dehydration
and hydrolysis reactions
DEFINITION 24 -dehydration- the removal of water to make a larger molecule-hydrolysis- add water to breakdown molecules TERM 25
Give examples of monosaccharides,
disaccharides, and polysaccharides
DEFINITION 25 -monosaccharides- Glucose-disaccharides- Sucrose- polysaccharides- Cellulose, chitin
