TV News LIES

Saturday, Feb 25th

Last update05:20:13 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...


Thrilling discovery of seven Earth-sized planets orbiting nearby star

Secen earth siaze planets discoveredA huddle of seven worlds, all close in size to Earth, and perhaps warm enough for...

Human effects on Earth are 170 times greater than natural forces: Study

Human effects on earthScientists at the Australian National University have come up with a simple equation to calculate the...

Astronomers find 60 new planets, including a 'super Earth'

Gliese 411 BA group of international researchers hit the planetary jackpot by spotting 60 new planets, including a...

Scientists boycott journals, conferences in protest of Trump travel ban

Scientists agaisnt TrumpThousands of scientists have pledged to boycott conferences and scientific journals in protest of President Trump's...
 
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!