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First Semester Review
Polansky's class review sheet
31
Biology
Not Applicable
12/11/2004

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Cards

Term
Hydrosphere
Definition
Condensation - Precipitation - Evaporation
Term
Lithosphere
Definition
Sedimentary Rock - Metamorphic Rock - Magma - Igneous Rock - Sediments
Term
Atmosphere
Definition
Animals - CO2 - Plants - O2
Term
Biosphere
Definition
Consumers - Decomposers - Producers
Term
Archaebacteria
Definition
ancient, prokaryotic
Term
Eubacteria
Definition
prokaryotic
Term
Protista
Definition
One celled organisms (eukaryotic)
Term
Fungi
Definition
no chlorophyll (Eukaryotic)
Term
Plantae
Definition
chloroplasts (eukaryotic)
Term
Animalia
Definition
animals!! (eukaryotic)
Term
Element
Definition
a substance composed of only one kind of atom which cannot be broken down
Term
Atoms
Definition
the smallest unit into which an element can be broken into without loosing its identity
Term
compounds
Definition
a substance composed of more than one kind of atom
Term
Atomic Mass
Definition
(M) actual mass of an atom
Term
Atomic Number
Definition
(Z) number of protons in nucleus
Term
Mass Number
Definition
(A) number of nucleons (protons and neutrons)
Term
Nucleotides
Definition
made of Phosphate, pentose sugar, and nitrogen base (think DNA and RNA)
Term
Isotopes
Definition
(nuclides) atoms which posess the same number of protons but different number of neutrons
Term
Electrostatic (Hydrogen) Bonds
Definition
the bonding of one molecule of water to another
Term
Hydrolosis vs Dehydration synthesis
Definition
Hydrolosis - adding water, make simpler
Dehydration systhesis - take away water, make more complex
Term
Radioisotopic Dating
Definition
same as Carbon 14 dating
Term
Mixtures:
Homogeneous
Heterogeneous
Definition
- 2 or more substances that intermingle without chemical reaction and are equally distributed
- 2 or more substances that are not equally distributed
Term
Solutions:
Solvent
Solute
Definition
- dissolving agent (usually water)
- dissolved substance
Term
Diatomic Molecules
Definition
Cant exist as one of itself - H2, O2, N2, F2, Cl2, Br2, I2
Term
Properties of water
Definition
odorless, tasteless, colorless, universal solvent
Term
Peptide bond
Definition
a bond between 2 acids
Term
Isomers
Definition
same identical formula but structure is different
Term
Aerobic
Definition
With oxygen gas, O2
Term
Anaerobic
Definition
without oxygen gas, O2
Term
Acids
Bases
Buffers
Definition
- are high on Ph scale
- have little or no acidity
- have characteristics of both
Term
Real Image
Virtual Image
Definition
- an image that can be projected on a screen
- an image that cannot be projected on a screen
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