Sentences with phrase «simple molecules»

According to Evolution, humans evolved from simple molecules.
How did relatively simple molecules in the primordial broth give rise to more and more complex compounds?
The fluids react with relatively acidic seawater to produce mineral structures full of tiny pores, where hydrogen and carbon dioxide come together to form simple molecules.
Scientists initially thought that DNA was too simple a molecule to be able to carry genetic information.
To them, DNA was too simple a molecule to be able to carry that sort of complex information and proteins showed much more variation.
Study shows potential of simple molecule in cancer metabolism.»
«Iodomethane is a comparatively simple molecule for understanding the processes taking place when organic compounds are damaged by radiation,» says co-author Artem Rudenko from Kansas State University.
Laboratory experiments also demonstrate that atomic addition reactions — similar to those assumed to occur in interstellar clouds — play a role in synthesizing complex molecules by subjecting ices containing simpler molecules such as water, carbon dioxide, and methanol to ionizing radiation dosages.
... The particular type of viral DNA (called Phi X174) the researchers made is an extremely simple molecule of only five or six genes.
Scientists from the Max Planck Institute for Chemical Ecology in Jena, Germany, have succeeded in identifying a relatively simple molecule that is able to regulate complex mating behavior in vinegar flies: a fatty acid methyl ester called methyl laurate.
So, we were starting to look at how simple molecules like sugars get across these fatty acid membranes, you know, spontaneously without any help from fancy proteins — and it turned out completely unexpectedly that ribose, which is one of the building blocks of RNA, gets across a wide range of membranes much more quickly than a set of very closely related sugars.
Simple molecules coming together to form complex life violates the second law of thermodynamics / entropy.
Microscopic pockets of water within the ice may have gathered simple molecules like the ones Miller synthesized, assembling them into longer and longer chains.
The basic ingredients for terrestrial life — a couple dozen simple molecules, including water — are now known to be abundant in the galactic clouds where stars are born.
Oxidation of simpler molecules releases energy, which all is contained in the electrons.
«One simple molecule regulates sexual behavior in Drosophila.»
And a separate experiment, published in Nature in May, showed that it is possible for the building blocks of RNA to emerge spontaneously from simple molecules thought to have been present on the early earth.
«We now have a pathway that would allow us to use simple molecules that were likely present on the early Earth,» says Carell.
When life on Earth was first getting started, simple molecules bonded together into the precursors of modern genetic material.
Though it's a long way from a few simple molecules to even the most basic proteins, detecting chemistry similar to Earth's around distant stars suggests that the pathway to life may be possible on other worlds.
This part of the Sun is cool enough to support simple molecules such as carbon monoxide and water, which can be detected by their absorption spectra.
amino acids Simple molecules that occur naturally in plant and animal tissues and that are the basic building blocks of proteins.
The nightglow is ultimately caused by the Sun's ultraviolet light, which streams into a planet's atmosphere and breaks the molecules up into atoms and other simpler molecules.
Proteins are rather simple molecules for the most part, but they are large enough to exhibit different characteristics from one segment to the next.
So, animals can move, memorize, and have continuous control on their life coordinating many complex functioning behind the combustion of simple molecules by a complex metabolic system.
We can now follow the chemical breadcrumbs from simple molecules like benzonitrile to these larger PAHs.»
«Maybe it would be an already existing [U.S. Food and Drug Administration] approved medication — that's the first screen we are performing — or maybe it's a very simple molecule, very cheap to synthesize,» Pépin says.
Hydrogen (H2) is an extremely simple molecule and yet a valuable raw material which as a result of the development of sophisticated catalysts is becoming more and more important.
Even at a frigid — 440 degrees Fahrenheit, the atoms bump and crash into each other, merging to form simple molecules.
«Since methanol is a relatively simple molecule, we thought at first that the project would be easy.
At first, the gas and dust cloud is extremely cold and simple molecules such as carbon monoxide and water settle on the grains of dust and solidify into ice.
One man there though asked him something about how entropy (a thermodynamic quant, ity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system) prevented the formation of complex molecules from simpler molecules and the speaker brushed him off saying that over time the entropy would remove all the energy from the system preventing the formation of the new molecule.
4 simple molecules.
Studying electron wave packets in simple molecules can help gain insight into the ways that those molecules rotate and vibrate.
Ethanol is such a small, simple molecule — just two carbon atoms, six hydrogens, and a spare oxygen — that it pours directly out of the stomach and small intestine into the bloodstream.
Life must have begun with a simple molecule that could reproduce itself — and now we think we know how to make one.
The team took a simple molecule — consisting of a benzene ring with a small nitrile arm of carbon and nitrogen and with two iodine atoms attached, one above and one below.
Chemically known as methane, natural gas is among the simplest molecules on Earth: a single carbon atom surrounded by four hydrogen atoms.
Water is a simple molecule resembling a pair of Mickey Mouse ears: two hydrogen atoms grab a single oxygen atom.
a b c d e f g h i j k l m n o p q r s t u v w x y z