# data[].attributes.body
the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical attraction; the number of protons determines the identity of the element.

# data[].attributes.body
Carbon-Based Molecules

# data[].attributes.body
the substance acted upon by an enzyme.

# data[].attributes.body
any of various proteins, as pepsin, originating from living cells andcapable of producing certain chemical changes in organic substancesby catalytic action, as in digestion.

# data[].attributes.body
a substance that causes or accelerates a chemical reactionwithout itself being affected.

# data[].attributes.body
Enzymes

# data[].attributes.body
noting or pertaining to a chemical change that isaccompanied by an absorption of heat

# data[].attributes.body
noting or pertaining to a chemical change that is accompanied by aliberation of heat.

# data[].attributes.body
the least amount of energy required to activate atoms or molecules toa state in which they can undergo a chemical reaction.

# data[].attributes.body
a state of rest or balance due to the equal action of opposing forces.

# data[].attributes.body
a thing produced by labor

# data[].attributes.body
a person or thing that reacts.

# data[].attributes.body
Chemical Reactions

# data[].attributes.body
a reverse movement or tendency; an action in a reverse direction ormanner.

# data[].attributes.body
any of a group of long, linear macromolecules, either DNA or various types of RNA, that carry genetic information directing all cellular functions: composed of linked nucleotides.

# data[].attributes.body
any of a class of organic compounds that contains at least one amino group, –NH 2 , and one carboxyl group, –COOH: the alpha-amino acids, RCH(NH 2)COOH, are the building blocks from which proteins are constructed.

# data[].attributes.body
any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the diet of all animals and other nonphotosynthesizing organisms, composed of 20 or more amino acids linked in a genetically controlled linear sequence into one or more long polypeptide chains, the final shape and other properties of each protein being determined by the side chains of the amino acids and their chemical attachments: proteins include such specialized forms as collagen for supportive tissue, hemoglobin for transport, antibodies for immune defense, and enzymes for metabolism.

# data[].attributes.body
any of a class of aliphatic acids, especially palmitic, stearic, or oleic acid, consisting of a long hydrocarbon chain ending in a carboxyl group that bonds to glycerol to form a fat.

# data[].attributes.body
any of a group of organic compounds that are greasy to the touch, insoluble in water, and soluble in alcohol and ether: lipids comprise the fats and other esters with analogous properties and constitute, with proteins and carbohydrates, the chief structural components of living cells.

# data[].attributes.body
any of a class of organic compounds that are polyhydroxy aldehydes or polyhydroxy ketones, or change to such substances on simple chemical transformations, as hydrolysis, oxidation, or reduction, and that form the supporting tissues of plants and are important food for animals and people.

# data[].attributes.body
a compound of high molecular weight derived either by the addition of many smaller molecules, as polyethylene, or by the condensation of many smaller molecules with the elimination of water, alcohol, or the like, as nylon.

# data[].attributes.body
a molecule of low molecular weight capable of reacting with identical or different molecules of low molecular weight to form a polymer.

# data[].attributes.body
the symbol for the logarithm of the reciprocal of hydrogen ion concentration in gram atoms per liter, used to express the acidity or alkalinity of a solution on a scale of 0 to 14, where less than 7 represents acidity, 7 neutrality, and more than 7 alkalinity.

# data[].attributes.body
the bottom support of anything; that on which a thing stands or rests

# data[].attributes.body
a compound usually having a sour taste and capable of neutralizing alkalis and reddening blue litmus paper, containing hydrogen that can be replaced by a metal or an electropositive group to form a salt, or containing an atom that can accept a pair of electrons from a base. Acids are proton donors that yield hydronium ions in water solution, or electron-pair acceptors that combine with electron-pair donors or bases.

# data[].attributes.body
the substance dissolved in a given solution.

# data[].attributes.body
able to pay all just debts.

# data[].attributes.body
the act of solving a problem, question, etc.

# data[].attributes.body
the act or state of adhering; state of being adhered or united

# data[].attributes.body
the molecular force between particles within a body or substance that acts to unite them.

# data[].attributes.body
a type of chemical bond in which a hydrogen atom that has a covalent link with one of the electronegative atoms (F, N, O) forms an electrostatic link with another electronegative atom in the same or another molecule.

# data[].attributes.body
Properties of Water

# data[].attributes.body
the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.

# data[].attributes.body
the bond formed by the sharing of a pair of electrons by two atoms.

# data[].attributes.body
the electrostatic bond between two ions formed through the transfer of one or more electrons.

# data[].attributes.body
an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons, as a cation (positive ion) which is created by electron loss and is attracted to the cathode in electrolysis, or as an anion (negative ion) which is created by an electron gain and is attracted to the anode. The valence of an ion is equal to the number of electrons lost or gained and is indicated by a plus sign for cations and a minus sign for anions, thus: Na + , Cl−, Ca ++ , S =

# data[].attributes.body
composed of two or more parts, elements, or ingredients

# data[].attributes.body
a component or constituent of a whole or one of the parts into whicha whole may be resolved by analysis

# data[].attributes.body
Atoms, Ions, and Molecules