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89 Cards in this Set
- Front
- Back
The molecules of life
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carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur (chonps)
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Vitalism
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the old way of looking at orgchem, which said that life force allowed certain compounds to be made only in the body.
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Who made urea and what did he use?
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Friedrich Wöhler using inorganic compounds and a substance in animal blood.
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Whoo made the first organic compound from inorganic compounds and what did he make?
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Hermann Kolbe, acetic acid
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Who simulated primordial earth and used lelectrical charges in the atmosphere, creating organic compounds?
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Stanley Miller
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What did vitalism eventually change to?
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Mechanism
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having 4 valence electrons
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tetravalance
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Methane
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CH4, tetrahedron
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When two carbons double bond...
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2-D molecule
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Ethane
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overlapping Methane
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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
|
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What did vitalism eventually change to?
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Mechanism
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having 4 valence electrons
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tetravalance
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Methane
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CH4, tetrahedron
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When two carbons double bond...
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2-D molecule
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Ethane
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overlapping Methane, C2H6
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hydrocarbons, examples
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molecules made of only H and C, petroleum and tail of fats
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Isomers
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compounds with the same number of atoms of the same elements but different structures
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structural isomers
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differ in covalent arrangement of atoms and locations of double bonds
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geometric isomers
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same covalent partnerships but differ in spatial arrangements
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enantiomers
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mirror image isomers
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T/F: Functional groups behave the same from molecule to molecule
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true
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Hydroxyl group
-form? -properties? -aka? |
-OH
-electronegative due to O -Attracts water molecules which dissolves sugars and some organic molecules -alcohols |
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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 |
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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 (-) |
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Amino Group
-form? -aka? -example? -properties? |
--N<H2
-amines -glycine -acts as a base to pick up protons. Under cellular conditions, has +1 charge |
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Sulfhydryl Group
-form? -aka? -example? -properties? |
-SH or -HS
-thiols -ethanethiol -two sulfhydryl groups can interact to stabilize a protein |
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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 |
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aka ATP
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Adenosine triphosphate
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aka ADP
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Adenine diphosphate
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How many hydrogen bonds form to one water molecule?
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4
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cohesion
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water to water bonding
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adhesion
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water to other bonding
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surface tension
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how hard it is to stretch or break the surface of a liquid
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kinetic energy
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energy of movement
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heat
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total amount of kinetic energy
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temperature
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average kinetic energy of molecules
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Calorie (not calorie, kcal)
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amnt of heat needed to raise 1 kg of water 1•C.
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specific heat
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the amount of heat that must be absorbed or lost for 1 g of a substance to change its temp by 1•C.
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Heat of vaporization
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quantity of heat a liquid must absorb for 1g of it to be converted to gas
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heat of vaporization of water at 25•C
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58 calories
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evaporative cooling
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as a liquid evaporates, the liquid that remains cools down because the hottest molecules evaporate
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At what temp is water most dense?
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4•C
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What percent less dense is ice than water?
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10%
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solution
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liquid that is a completely homogeneous mixture of two or more substances
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solvent
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dissolving agent
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solute
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dissolved thing
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hydration shell
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sphere of water molecules around each dissolved ion
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colloid
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a stable suspension of fine particles in a liquid... a molecule is attracted to water but does not dissolve.
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avagadro's number
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6.02x10^23
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mole
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the number of molecules in grams which equals the atomic weight of the molecule, equal to avagadro's number
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atomic mass measured in
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daltons
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molarity
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number of molecules per liter of solution
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OH-
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hydroxide ion
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H+
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hydrogen ion
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hydronium ion
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H3O+
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equilibrium that involves movement
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dynamic equilibrium
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Concentration of each ion in pure water is..
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10^-7 M
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acid
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increases H+
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base
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reduces H+ count
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strong base/acid
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a > b
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weak base/acid
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a<>b
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In an aqueous solution, H+ concentration and OH- concentration equals
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10^-14
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formula to find pH
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-log [H+]... ex. neutral [H+] is 10^-7... therefore -log 10^-7= 7
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Buffers are usually
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weak acids and its corresponding base
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ex buffer
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carbonic acid: HCO3<>HCO3- and H+
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acid percipitation
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pH<5.6
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What is acid rain caused by?
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sulfur oxides and nitrogen oxides
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how many natural elements?
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92
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how many of the natural elements are essential to life?
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25
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cation
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positive ion
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anion
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negative ion
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ionic compounds form -_____, not ____
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salts not molecules
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T/F cations and anions are equal in salts
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false
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Van Der Waals interactions
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"hot spots" when electrons randomly cluster here or there giving random poles
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a molecule with 2 atoms is always
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linear
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start with ___ in a chemical reaction, end with ___
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reactants>products
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photosynthesis
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6CO2 + 6H2O > C6H12O6 + 6O6
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Heirarchy of Biological organization
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biosphere-ecosystems-communities-populations-organisms-organs and organ systems-tissues-cells-organelles-molecules
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prokaryotic cells
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bacteria and archea. DNA not separated from cell
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eukaryotic
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internal membranes, organelles
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high-throughput technology
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methods that analyze biological materials quickly and give large output
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bioinformatics
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extracting useful bio info from the surplus of info
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Three domains of lfie
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bacteria archea eukarya
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eukarya kingdoms
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protists fungi plantae animalia
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