- polymerized small organic molecules by simulating conditions of primitive Earth. - was able to create polymers of amino acids by placing the molecules in drying conditions. - Clay was found to be an excellent substrate for this polymerization.

- synthesized small organic molecules in an experiment that reproduced the proposed conditions of primitive Earth. - simulated conditions by combining NH3, CH4, and water vapor, boiling the mixture, and then subjecting the mixture to simulated lightning. - Small organic molecules were later collected.

- thought to have had large amounts of energy and a reducing atmosphere. - thought to have consisted primarily of hydrogen-rich molecules, such as ammonia (NH3), methane (CH4), and water vapor.

Several factors are required to convert an abiotic world into a biotic world

- the synthesis of biological molecules, polymerization of these molecules, collection of the molecules into aggregates, and heredity.

The Miller / Urey experiment showed that

- the hypothesized conditions on early Earth could generate organic molecules.

Sidney Fox’s experiment showed that

- if the “thin soup” was subjected to drying conditions, dipeptides and polypeptides could form

Many scientists believe that the formation of life from abiotic substances could not occur on modern Earth. The best explanation is that

- the oxidizing atmosphere present today is not conducive to the synthesis of complex organic molecules

To simulate the atmosphere that was thought to have been present in early Earth, Stanley Miller and Harold Urey used an apparatus with an atmosphere containing

- hydrogen, ammonia, methane, and water vapor.

1.10.3 The Origin of Life: Life from Nonlife Flashcards by Irina Soloshenko

This is a private class.

You need a Pro account to access a Private class
I have an access code

To request access, contact Irina Soloshenko, and ask that they share the class directly with you, using the email address you use for your Brainscape account.

Brainscape's Knowledge GenomeTM

1.10.3 The Origin of Life: Life from Nonlife Flashcards

Brainscape's Knowledge Genome^TM