Double ringed bases (ex. A,G) that form 2 hydrogen bonds between pyrimadines
Back
mass number
Front
the total number of protons and neutrons in a nucleus.
Back
valence electrons
Front
electrons in the outermost shell
Back
unsaturated fats
Front
fatty acid chain with one or more double bonds which cause it to bend / kink
Back
RNA
Front
nucleic acid that functions to make proteins (ribose+PO4+AUCG)
Back
neutrons
Front
subatomic particles with NO charge but with a mass nearly equal to that of a proton; found in nucleus of an atom
Back
C=O
Front
Carbonyl functional group
Back
isomers
Front
Compounds with the same chemical formula but different structures and therefore different properties
Back
carbohydrates
Front
macromolecules that include sugars
Back
covalent bond
Front
a strong chemical bond that involves the sharing of electron pairs between atoms
Back
dehydration synthesis
Front
reactions that connects a monomer to another monomer; (aka condensation reaction) and water is removed to from a disaccharide
Back
compound
Front
a thing that is composed of two or more separate elements combined in a fixed ratio
Back
electrons
Front
a subatomic particle with a negative charge
Back
polysaccharides
Front
many sugars
Back
lipids
Front
-fats, oils, waxes
-animals use for storage of energy, insulation, and water flow lubricant
-plants use for cuticle/waxy layer for energy
-nonpolar
Back
CH3
Front
Methyl functional group
Back
chitin
Front
-insects,crustacean,exoskeletons ,fungal cell
-cant break down beta
-nitrogen= durable sugar
Back
electron shell
Front
energy level of electrons at a characteristic average distance from the nucleus of an atom
Back
protons
Front
A subatomic particle that has a positive charge and that is found in the nucleus of an atom
Back
energy
Front
the capacity to cause change
Back
essential elements
Front
the 20-25% of natural elements that an organism needs to live a healthy life and reproduce.
Back
polar
Front
uneven distribution charge where one side is negative and the other side is positive
Back
element
Front
a substance that cannot be broken down to other substances by chemical reactions
Back
universal solvent
Front
water
Back
Aldehyde
Front
Carbonyl group at the end of a carbon skeleton
Back
phospholipid bilayer
Front
lipid that makes up cell membranes
Back
nucleotide
Front
sugar+phosphate+nitrogen base
Back
matter
Front
Anything that has mass and takes up space
Back
monosaccharides
Front
1 sugar (ex. glucose)
Back
NH2
Front
amine/amino functional group
Back
R group in Proteins
Front
determines structure,sequence, and what bonds with what
Back
peptide bond
Front
amino group of one amino acid molecule combines with the acid group of another
Back
disaccahride
Front
2 sugars
Back
cellulose
Front
-chains of beta glucose
-plant cell walls(strong)
-undigestable(fiber)
Back
starch
Front
-chains of alpha glucoses(poly)
-storage energy for plants, energy for animals
-complex carb
Back
trace elements
Front
required by an organism in only minute quantities
Back
PO4
Front
phosphate (found in ATP and DNA)
Back
pyrimadine
Front
Single ringed bases (ex. T,C,U) that forms 3 hydrogen bonds between the purines C and G
Back
atomic number
Front
the number of protons in the nucleus of an atom
Back
glycerol
Front
backbone in many fats
Back
saturated fat
Front
fatty acid chain that has hydrogen occupying every space possible
Back
DNA
Front
nucleic acid that is the genetic material of inheritance (deoxyribose+ PO4+ATCG)
Back
adenine triphosphate
Front
3 phosphates, 1 sugar, 1 purine
Back
OH-
Front
hydroxide ion
Back
ATP
Front
organic molecule that releases energy (aka cellular currency)
Back
hydrolysis
Front
process of disassembling polymers into monomers; opposite of dehydration synthesis
Back
SH
Front
sulfhydryl functional group found in amino acid such as Cysteine
Back
COOH
Front
carboxyl functional group
Back
Ketone
Front
carbonyl group within a carbon skeleton
Back
atomic nucleus
Front
An atom's dense central core, containing protons and neutrons.
Back
Section 2
(50 cards)
buffer
Front
substance that prevents a change in pH by absorbing or releasing hydrogen or hydroxide ions
Back
hydration shell
Front
the sphere of water molecules around each dissolved ion
Back
solution
Front
A liquid that is a homogeneous mixture of two or more substances.
Back
cis-trans isomers (geometric isomers)
Front
atoms that differ in their spatial arrangements due to the inflexibility of double bonds
Back
fat
Front
A lipid consisting of three fatty acids linked to one glycerol molecule; also called a triacylglycerol or triglyceride.
Back
hydronium ion
Front
a water molecule that has an extra proton bound to it (H30+)
Back
steroid
Front
a lipid molecule in which the carbon skeleton forms four fused rings
Back
capillary action
Front
occurs because water molecules are attracted to charges on the inner surfaces of narrow tubular structures such as glass tubes, drawing the water molecules to the sides of the tubes
Back
functional group
Front
group of atoms that provides or imparts a specific function to a carbon skeleton
Back
equilibrium
Front
steady state of relative reactant and product concentration in reversible chemical reactions in a closed system
Back
Calorie
Front
Amount of energy needed to raise temperature 1 gram of water 1 degree C
Back
chemical bond
Front
interaction between two or more of the same or different atoms that results in the formation of molecules
Back
kinetic energy
Front
energy of motion
Back
hydrogen ion (H+)
Front
a single proton with a charge of 1+
Back
chemical reaction
Front
process leading to the rearrangement of atoms in molecules
Back
acid
Front
molecule that donates hydrogen ions and increases the concentration of hydrogen ions in a solution
Back
macromolecules
Front
A very large organic molecule composed of many smaller molecules
Back
cohesion
Front
intermolecular forces between water molecules caused by the polar nature of water; responsible for surface tension
Back
reactant
Front
arrow indicating conversation of starting materials
Back
structural isomers
Front
differ in the covalent arrangements of their atoms
Back
mole
Front
The number of grams of a substance that equals its molecular weight in daltons and contains Avogadro's number of molecules.
Back
temperature
Front
a measure in degrees of the average thermal energy of the atoms and molecules in a body of matter
Back
single bond
Front
A single covalent bond; the sharing of a pair of valence electrons by two atoms.
Back
covalent bonds
Front
the sharing of a pair of valence electrons by two atoms
Back
atom
Front
the smallest unit of matter that retains all of the chemical properties of an element
Back
enantiomers
Front
isomers that are mirror images of each other
Back
polar molecule
Front
a molecule with an unequal distribution of charge
Back
products
Front
resulting materials
Back
heat of vaporization
Front
the quantity of heat a liquid must absorb for 1 g of it to be converted from the liquid to the gaseous state
Back
hydrophobic
Front
Having no affinity for water; tending to coalesce and form droplets in water.
Back
electron orbital
Front
how electrons are spatially distributed surrounding the nucleus; the area where an electron is most likely to be found
Back
cation
Front
positive ion that is formed by an atom losing one or more electrons
Back
hydrogen bond
Front
weak bond between slightly positively charged hydrogen atoms and slightly negatively charged atoms in other molecules
Back
electron transfer
Front
movement of electrons from one element to another; important in creation of ionic bonds
Back
ionic compounds (salts)
Front
- Compounds formed by ionic bonds.
- Does not consist of molecules, only elements.
Back
hydrocarbons
Front
organic molecules consisting of only carbon and hydrogen
Back
Joule
Front
unit of energy
Back
ion
Front
atom or group of atoms that has gained or lost one or more electrons, thus acquiring change
Back
electronegativity
Front
ability of some elements to attract electrons (often of hydrogen atoms), acquiring partial negative charges in molecules and creating partial positive charges on the hydrogen atoms
Back
base
Front
molecule that donates hydroxide ions or otherwise binds excess hydrogen ions and decreases the concentration of hydrogen ions in a solution
Back
electron
Front
negatively charged subatomic particle that resides outside of the nucleus in the electron orbital; lacks functional mass and has a negative charge of -1 unit
Back
polar covalent bond
Front
A covalent bond between atoms that differ in electronegativity. The shared electrons are pulled closer to the more electronegative atom, making it slightly negative and the other atom slightly positive.
Back
solute
Front
A substance that is dissolved in a solution.
Back
kilocalorie
Front
1000 calories
Back
dissociation
Front
release of an ion from a molecule such that the original molecule now consists of an ion and the charged remains of the original, such as when water dissociates into H+ and OH-
Back
calorie
Front
amount of heat required to change the temperature of one gram of water by one degree Celsius
Back
adhesion
Front
the clinging of one substance to another, such as water to plant cell walls
Back
anion
Front
negative ion that is formed by an atom gaining one or more electrons
Back
glycosidic linkage
Front
A covalent bond formed between two monosaccharides by a dehydration reaction.
Back
pH
Front
measure of how acidic or basic a solution is; the scale ranges from below 0 to above 14; solution with pH above 7 is basic and a pH below 7 is acidic
Back
Section 3
(44 cards)
organic molecule
Front
any molecule containing carbon (except carbon dioxide)
Back
heat
Front
thermal energy in transfer from one body of matter to another
Back
Electrons
Front
a subatomic particle with a negative charge
Back
Element
Front
a substance that cannot be broken down to other substances by chemical reactions
Back
Atom
Front
smallest unit of matter
Back
hydrophilic
Front
Having an affinity for water.
Back
solvent
Front
the dissolving agent of a solution
Back
sphere of hydration
Front
when polar water molecules surround charged or polar molecules thus keeping them dissolved and in solution
Back
nucleus
Front
core of an atom; contains protons and neutrons
Back
specific heat capacity
Front
the amount of heat one gram of a substance must absorb or lose to change its temperature by one degree Celsius
Back
octet rule
Front
rule that atoms are most stable when they hold eight electrons in their outermost shells
Back
Dalton
Front
A measure of mass for atoms and subatomic particles; the same as the atomic mass unit, or amu.
Back
Neutrons
Front
subatomic particles with NO charge but with a mass nearly equal to that of a proton; found in nucleus of an atom
Back
pH scale
Front
scale ranging from zero to 14 that is inversely proportional to the concentration of hydrogen ions in a solution
Back
potential energy
Front
energy that matter possesses because of its location or structure
Back
orbital
Front
region surrounding the nucleus; contains electrons
Back
thermal energy
Front
Kinetic energy due to the random motion of atoms and molecules; energy in its most random form.
Back
atomic mass
Front
total mass of an atom
Back
nonpolar covalent bond
Front
type of covalent bond that forms between atoms when electrons are shared equally between them
Back
Energy
Front
the capacity to cause change
Back
Compound
Front
a thing that is composed of two or more separate elements combined in a fixed ratio
Back
evaporative cooling
Front
The process in which the surface of an object becomes cooler during evaporation, a result of the molecules with the greatest kinetic energy changing from the liquid to the gaseous state.
Back
valence shell
Front
The outermost energy shell of an atom, containing the valence electrons involved in the chemical reactions of that atom.
Back
chemical equilibrium
Front
the point at which the reactions offset one another exactly
Back
radioisotope
Front
isotope that emits radiation composed of subatomic particles to form more stable elements
Back
isotope
Front
one or more forms of an element that have different numbers of neutrons
Back
double bond
Front
A double covalent bond; the sharing of two pairs of valence electrons by two atoms.
Back
radioactive isotope
Front
the nucleus decays spontaneously, giving off particles and energy
Back
Matter
Front
Anything that has mass and takes up space
Back
molecular mass
Front
The sum of the masses of all the atoms in a molecule
Back
proton
Front
positively charged particle that resides in the nucleus of an atom; has a mass of one amu and a charge of +1
Back
neutron
Front
uncharged particle that resides in the nucleus of an atom; has a mass of one amu
Back
molecule
Front
two or more atoms chemically bonded together
Back
Molecule
Front
two or more atoms held together by covalent bonds
Back
hydroxide ion
Front
a water molecule that has lost a proton; OH-
Back
ionic bond
Front
chemical bond that forms between ions with opposite charges (cations and anions)
Back
specific heat
Front
amount of heat that must be absorbed or lost 1g of a substance to change its temporary temperature
Back
emergent properties
Front
a compound has chemical and physical characteristics different from those of its constituent elements
Back
surface tension
Front
tension at the surface of a body of liquid that prevents the molecules from separating; created by the attractive cohesive forces between the molecules of the liquid
Back
Protons
Front
A subatomic particle that has a positive charge and that is found in the nucleus of an atom
Back
isotopes
Front
Atoms with the same number of protons but different numbers of neutrons
Back
molarity
Front
A common measure of solute concentration, referring to the number of moles of solute per liter of solution.
Back
aqueous solution
Front
a solution in which water is the solvent
Back
van der Waals interaction
Front
very weak interaction between molecules due to temporary charges attracting atoms that are very close together