TV News LIES

Monday, Sep 22nd

Last update02:53:50 AM GMT

You are here News Science Chemical basis for first life theorized

Chemical basis for first life theorized

molecules of lifeIt's a chicken-and-the-egg puzzle: How could the basic biochemicals like amino acids and nucleotides have come about when there were no catalysts, like proteins or ribosomes, around to create them? Now scientists propose that a third type of catalyst could have jumpstarted metabolism and life itself, deep in hydrothermal ocean vents, an article in The Biological Bulletin says.

The scientists' theory says molecular structures involving transition metal elements -- iron, copper, nickel, etc. -- and ligands -- small organic molecules -- could have catalyzed the synthesis of basic biochemicals, monomers, that acted as building blocks for more complex molecules, leading ultimately to the origin of life.

"There has been a big problem in the origin of life (theory) for the last 50 years in that you need large protein molecules to be catalysts to make monomers, but you need monomers to make the catalysts," Harold Morowitz of George Mason University in Virginia says.

However, he suggests, "You can start out with these small metal-ligand catalysts, and they'll build up the monomers that can be used to make" the large protein catalysts.

More...


Most Recent Related Stories...


New dinosaur species with giant nose discovered in Utah

New dinosaur As researchers from North Carolina State University and Brigham Young University have discovered, the largest aquiline...

Identical twin linked to 2004 rapes by new DNA test

identical twin gene dnaA Boston-area man long suspected of two 2004 rapes was formally charged after a new DNA...

Supermassive Black Hole Discovered Inside Tiny Dwarf Galaxy

black hole"It is the smallest and lightest object that we know of that has a supermassive black...

Solar storm heading for Earth

solar flareA "strong" solar flare that launched off the sun Wednesday afternoon could cause some fluctuations in...
 
America's # 1 Enemy
Tee Shirt
& Help Support TvNewsLIES.org!
TVNL Tee Shirt
 
TVNL TOTE BAG
Conserve our Planet
& Help Support TvNewsLIES.org!
 
Get your 9/11 & Media
Deception Dollars
& Help Support TvNewsLIES.org!
 
The Loaded Deck
The First & the Best!
The Media & Bush Admin Exposed!