16. Origin Of Life 1

Question 1

Definition of life thought?

Answer 1

Astrobiologies have a working definition of life more like a criteria as life can’t be naturally defined at the moment without excluding things

Question 2

Where could amino acids comes from? (Important bc form proteins)

Answer 2

Meterioties could bring them
Produced by streaker synthesis (from aldehyde) etc

Question 3

Where could, necleo bases come from? And why important

Answer 3

Meteriotes reacutons etc neeeded for dna

Question 4

Where do lipids originate from?

Answer 4

Spontaneously self form in water
Meteorites bring lipids in to early ocean

Question 5

First self replicating molecules? (RNA worlds hypothesis)

Answer 5

RNA catalysts ribozymes , maybe on prebiotic world RNA molecules could catalyse them self without needing proteins

Question 6

Important rna details (rna world hypotheis)

Answer 6

Under certain conditions some RNA are more stable and replicate faster some errors dna cause evolution
Short rna polymers added w rna monomers in lab and copied to make more RNA

Question 7

How do lipids help develop life progress? (RNA hypothesis)

Answer 7

Properties of RNA molecules affect lipid membrane and can imagine how lipids can start to self divide

Question 8

What came first protein or dna? (RNA world hypothesis)

Answer 8

RNA world says rna catalyses itself to act as both job and over time recruits dna and makes proteins in evolution