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89 Cards in this Set

  • Front
  • Back
The molecules of life
carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur (chonps)
Vitalism
the old way of looking at orgchem, which said that life force allowed certain compounds to be made only in the body.
Who made urea and what did he use?
Friedrich Wöhler using inorganic compounds and a substance in animal blood.
Whoo made the first organic compound from inorganic compounds and what did he make?
Hermann Kolbe, acetic acid
Who simulated primordial earth and used lelectrical charges in the atmosphere, creating organic compounds?
Stanley Miller
What did vitalism eventually change to?
Mechanism
having 4 valence electrons
tetravalance
Methane
CH4, tetrahedron
When two carbons double bond...
2-D molecule
Ethane
overlapping Methane
The molecules of life
carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur (chonps)
Vitalism
the old way of looking at orgchem, which said that life force allowed certain compounds to be made only in the body.
Who made urea and what did he use?
Friedrich Wöhler using inorganic compounds and a substance in animal blood.
Whoo made the first organic compound from inorganic compounds and what did he make?
Hermann Kolbe, acetic acid
Who simulated primordial earth and used lelectrical charges in the atmosphere, creating organic compounds?
Stanley Miller
What did vitalism eventually change to?
Mechanism
having 4 valence electrons
tetravalance
Methane
CH4, tetrahedron
When two carbons double bond...
2-D molecule
Ethane
overlapping Methane, C2H6
hydrocarbons, examples
molecules made of only H and C, petroleum and tail of fats
Isomers
compounds with the same number of atoms of the same elements but different structures
structural isomers
differ in covalent arrangement of atoms and locations of double bonds
geometric isomers
same covalent partnerships but differ in spatial arrangements
enantiomers
mirror image isomers
T/F: Functional groups behave the same from molecule to molecule
true
Hydroxyl group
-form?
-properties?
-aka?
-OH
-electronegative due to O
-Attracts water molecules which dissolves sugars and some organic molecules
-alcohols
Carbonyl Group
-form?
-aka?
-example?
-( >C=O)
-kenotes:carbonyl group within carbon skeleton ex. acetone
-aldehydes: carbonyl group on the end of a carbon skeleton ex. propanal
Carboxyl Group
-form?
-aka?
-example?
-properties?
-C< =O OH
-carboxylic acids
-ex. acetic acid
--acidic properties because it is a source of H+ ions... breaks into H+ ions and carboxylate group (-)
Amino Group
-form?
-aka?
-example?
-properties?
--N<H2
-amines
-glycine
-acts as a base to pick up protons. Under cellular conditions, has +1 charge
Sulfhydryl Group
-form?
-aka?
-example?
-properties?
-SH or -HS
-thiols
-ethanethiol
-two sulfhydryl groups can interact to stabilize a protein
Phosphate group
-form?
-aka?
-example?
-properties?
O
II
O-P-(-O)
(-O)

-organic phosphates
-glycerol phosphate
-makes the molecule its attached to an anion. can transfer energy between organic molecules
aka ATP
Adenosine triphosphate
aka ADP
Adenine diphosphate
How many hydrogen bonds form to one water molecule?
4
cohesion
water to water bonding
adhesion
water to other bonding
surface tension
how hard it is to stretch or break the surface of a liquid
kinetic energy
energy of movement
heat
total amount of kinetic energy
temperature
average kinetic energy of molecules
Calorie (not calorie, kcal)
amnt of heat needed to raise 1 kg of water 1•C.
specific heat
the amount of heat that must be absorbed or lost for 1 g of a substance to change its temp by 1•C.
Heat of vaporization
quantity of heat a liquid must absorb for 1g of it to be converted to gas
heat of vaporization of water at 25•C
58 calories
evaporative cooling
as a liquid evaporates, the liquid that remains cools down because the hottest molecules evaporate
At what temp is water most dense?
4•C
What percent less dense is ice than water?
10%
solution
liquid that is a completely homogeneous mixture of two or more substances
solvent
dissolving agent
solute
dissolved thing
hydration shell
sphere of water molecules around each dissolved ion
colloid
a stable suspension of fine particles in a liquid... a molecule is attracted to water but does not dissolve.
avagadro's number
6.02x10^23
mole
the number of molecules in grams which equals the atomic weight of the molecule, equal to avagadro's number
atomic mass measured in
daltons
molarity
number of molecules per liter of solution
OH-
hydroxide ion
H+
hydrogen ion
hydronium ion
H3O+
equilibrium that involves movement
dynamic equilibrium
Concentration of each ion in pure water is..
10^-7 M
acid
increases H+
base
reduces H+ count
strong base/acid
a > b
weak base/acid
a<>b
In an aqueous solution, H+ concentration and OH- concentration equals
10^-14
formula to find pH
-log [H+]... ex. neutral [H+] is 10^-7... therefore -log 10^-7= 7
Buffers are usually
weak acids and its corresponding base
ex buffer
carbonic acid: HCO3<>HCO3- and H+
acid percipitation
pH<5.6
What is acid rain caused by?
sulfur oxides and nitrogen oxides
how many natural elements?
92
how many of the natural elements are essential to life?
25
cation
positive ion
anion
negative ion
ionic compounds form -_____, not ____
salts not molecules
T/F cations and anions are equal in salts
false
Van Der Waals interactions
"hot spots" when electrons randomly cluster here or there giving random poles
a molecule with 2 atoms is always
linear
start with ___ in a chemical reaction, end with ___
reactants>products
photosynthesis
6CO2 + 6H2O > C6H12O6 + 6O6
Heirarchy of Biological organization
biosphere-ecosystems-communities-populations-organisms-organs and organ systems-tissues-cells-organelles-molecules
prokaryotic cells
bacteria and archea. DNA not separated from cell
eukaryotic
internal membranes, organelles
high-throughput technology
methods that analyze biological materials quickly and give large output
bioinformatics
extracting useful bio info from the surplus of info
Three domains of lfie
bacteria archea eukarya
eukarya kingdoms
protists fungi plantae animalia