The line between life and not-life Slides created by Rapousi Marina - - PowerPoint PPT Presentation

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The line between life and not-life Slides created by Rapousi Marina - - PowerPoint PPT Presentation

Feb 11, 2023 177 likes •353 views

A presentation based on the TED talk by Martin Hanczyc, London, Spring 2011: The line between life and not-life Slides created by Rapousi Marina (1890) Systems Non- living -----------> Living Artificial life Living

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SLIDE 1

A presentation based on the TED talk by Martin Hanczyc, London, Spring 2011:

The line between life and not-life

Slides created by Rapousi Marina (1890)

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SLIDE 2

Systems

  • Non- living -----------> Living
  • Artificial life
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SLIDE 3

Living systems characteristics

  • Body
  • Metabolism
  • Inheritable information

Movement and replication Lifelike systems

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SLIDE 4

Protocell

  • Chemical model of living cell
  • Cell: millions of different types of molecules
  • Protocell : ten of different types of molecules
  • Leduc : ‘‘The synthesis of life, should it ever occur,

will not be the sensational discovery which we usually associate with the idea’’

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SLIDE 5

Evolution theory

  • Rudimentary attributes of life
  • Enviroment
  • Self- assembly of chemicals non existing before

large stucture

  • Body of protocell : membrane molecules in the right

enviroment which are similar morphologically and fuctionallyto our body membrane

Evolution

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SLIDE 6

Artificial organism

  • Protocell model 1 : run a metabolism on it

Natural clay : Montmorillonite Informational molecules : RNA, DNA

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SLIDE 7

Living systems

  • Dymanic system: use energy to move
  • Self - assembly protocell model 2 : Oil – water

systems

Water pool Oil droplet

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SLIDE 8

Protocell model 2

  • Body, moving , metabolic protocell that

sustain itself

Water pool Oil droplet Food source

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SLIDE 9

Types of interactions

  • 1 moving protocell
  • 2 moving protocell
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SLIDE 10

Kinds of protocell

Protocell A Vibration Protocell B Fusion

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SLIDE 11

Interactions of different protocells

  • Protocell A + Protocell B
  • Hybrid protocell AB
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SLIDE 12

Replication

  • One to two hybrid protocells
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SLIDE 13

Origin of life

  • Primordial ooze : mixture of diverse organic

compound

  • Pure sugar crystal

brownish caramel

  • 4- 4,5 bilion years ago : life out of junk and not

from pure chemicals

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SLIDE 14

Tar- fuelled protocell

Oil droplet Black tar Food source

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SLIDE 15

Αrtificial life experiment

  • Pathway between non- living and living systems
  • ‘‘Weird life’’
  • General criteria of systems :

➢Non- equilibrium ➢Liquid form ➢Make and break chemical bonds

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SLIDE 16
  • Protocells with likelife properties :

➢Clay ➢Primodial ooze ➢Oil and water ➢No DNA

  • Origin and existance of life
  • Life out of universe