AP BIOLOGY

EVOLUTION

THE ORIGIN OF LIFE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which scientist(s) first created protocells by heating amino acids?
A
Stanley Miller
B
Sidney Fox
C
Harold Urey
D
Alexander Oparin
Explanation: 

Detailed explanation-1: -Fox explored the synthesis of amino acids from inorganic molecules, the synthesis of proteinous amino acids and amino acid polymers called “proteinoids” from inorganic molecules and thermal energy, and created what he thought was the world’s first protocell out of proteinoids and water.

Detailed explanation-2: -4. Sidney Fox (1950s) showed that splashing amino acids under hot, dry conditions caused them to instantly polymerize into proteins. Other experiments utilizing cyanide, clays and heat were successful at triggering polymerization of amino acids into proteins.

Detailed explanation-3: -Sydney Fox is the title character on the television show Relic Hunter, played by Tia Carrere. Sydney Fox. First appearance. Buddha’s Bowl.

Detailed explanation-4: -S.W. Fox proposed the microsphere model.

Detailed explanation-5: -Fox called this product a “proteinoid, ” and further speculated that heat polymerization of amino acids could occur in some “hot zones” on primitive Earth. When these proteinoids were dissolved in water, they would automatically aggregate into a microspheric multi-molecular system, which he termed a microsphere.

There is 1 question to complete.