Word Finder - molecule

definition

The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by chemical bonds.

example

Hydrogen chloride is a diatomic molecule, consisting of a hydrogen atom and a chlorine atom.

definition

A tiny amount.

He studied the DNA molecule to see if the child was related to the man.

The symbols of compounds become very concise, as the number of atoms of one kind in a molecule can be expressed by a sub-index.

By the entrance of amino or hydroxyl groups into the molecule dyestuffs are formed.

Additional evidence as to the structure of the molecule was discussed by Avogadro in 1811, and by Ampere in 1814.

A specific region of the DNA molecule, called a cistron, unwinds.

A molecule of water (H20) consists of two atoms of hydrogen and one atoms of hydrogen and one atom of oxygen.

While certain additive relations hold between some homologous series, yet differences occur which must be referred to the constitution of the molecule.

Each chromosome is really a very long DNA molecule.

The introduction of negative groups into a molecule alters the boiling-point according to the number of negative groups already present.

A factor of considerable importance in determining boiling-points of isomers is the symmetry of the molecule.

Ferromagnetism was explained by Ampere on the hypothesis that the magnetization of the molecule is due to an electric current constantly circulating within it.

As a consequence of the structure of the molecule, which is an aggregation of atoms, the planes of the orbits around the latter may be oriented in various positions, and the direction of revolution may be right-handed or left-handed with respect to the direction of any applied magnetic field.

His view as to the dual composition of the toxin molecule has already been mentioned, and it is evident that if the haptophorous or combining group has its affinity satisfied by union with antitoxin, the toxin will no longer combine with living cells, and will thus be rendered harmless.

The temporary dipoles are greatest for the longest molecule.

Usually, when the symbols of the elements are written or printed with a figure to the right, it is understood that this indicates a molecule of the element, the symbol alone representing an atom.

Canine is a secondary base, forming a nitroso derivative with nitrous acid, a urethane with chlorcarbonic ester and a tertiary base (methyl conine) with methyl iodide; reactions which point to the presence of the = NH group in the molecule.

All these reactions take place concurrently, so that one molecule of a diglyceride may still retain its ephemeral existence, whilst another molecule is already broken up completely into free fatty acids and glycerin.

Kris studied the DNA molecule, now certain the woman's appearance spelled certain danger for him.

Don't forget to write the words " induced dipole " next to the bromine molecule.

Since that date it has more than once been suggested that the molecular currents producing magnetism might be due to the revolution of one or more of the charged atoms or " ions " constituting the molecule.

Living protoplasm, or in other words a biogen molecule, is regarded as consisting of a central atom group (Leistungskern), related to which are numerous secondary atom groups or sidechains, with unsatisfied chemical affinities.

The' side-chains constitute the means by which other molecules are added to the living molecule, e.g.

Silver fluoride, AgF, is obtained as quadratic octahedra, with one molecule of water, by dissolving the oxide or carbonate in hydrofluoric acid.

The band spectrum, which corresponds to the compound or at least to the molecule of titanium, certainly belongs to a lower temperature than the line spectrum of the same metal.

An optional add-on 3D molecule viewer is available for Windows users - see below.

Bulky substituents slow this process, however, and in the case of the molecule shown the two enantiomers have been isolated.

Still another view, advocated by Bordet, is that the union of toxin and antitoxin is rather of physical than of strictly chemical nature, and represents an interaction of colloidal substances, a sort of molecular deposition by which the smaller toxin molecule becomes entangled in the larger molecule of antitoxin.

This special carrier of energy is the molecule adenosine triphosphate, or ATP.

Removal by reacting with ammonia The most likely basic substance which a hydrogen ion is going to collide with is an ammonia molecule.

Ionization The process by which a neutral atom or molecule acquires or loses an electric charge.

The User should make a list of the names of all the polar atoms in the Probe Molecule.

Each chromosome is really a very long molecule of DNA wound up and coiled around special proteins to form chromatin.

Its molecule contains an extended system of delocalised electrons called a chromophore.

Difference electron density for a molecule of AMPPNP is observed in the kinase active site cleft.

When a solution of the sample molecule is mixed with a metal colloid the molecules are absorbed onto the surface of the colloids.

These peptides probably alter the conformation of the phosphodiester chain through a complex interaction with DNA molecule.

This fragment of the complete ACTH molecule does not stimulate the adrenal cortex to produce hormones.

John Warren will provide additional scientific support for small molecule crystallography.

I also advise the small molecule crystallography service in the Chemistry Department.

The cyanide ion comes from hydrogen cyanide ion comes from hydrogen cyanide, which is a covalent molecule.

Because the valence electrons in the water molecule spend more time around the oxygen.. .

Using fluorescence excitation, sensitivities down to the single molecule detection limit can be achieved.

If a molecule which absorbs UV radiation does not fluoresce it means that it must have lost its energy some other way.

Some proteins fluoresce naturally, because the fluoresce naturally, because the fluorescent molecule is actually a part of the protein.

By using a laser which excites the OH and induces fluorescence, he is able to measure the concentrations of the molecule.

The human mitochondrial genome is a small circular DNA molecule 16 568 bp in length containing 37 genes.

A normal hemoglobin molecule contains two alpha globin molecule contains two alpha globins and two beta globins to make up the complement of 4 globins.

The molecule consists of a short triple helix about 105 nm in length with a large globular domain at each end.

This team is investigating the ' signal molecule ' which produces the scarring around the brain thought to be responsible for causing hydrocephalus.

An ammonia molecule removes a hydrogen ion from the -NH 3 + group in a reversible reaction.