Cell theory and the nature of life Flashcards

1
Q

What are the three points of cell theory?

A
  • All organisms are composed of one or more cells.
  • Cells are the basic unit of life
  • All cells arise from pre-existing cells
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2
Q

Why was a membrane required for making self-replicating polymers in early life?

A

Water was highly abundance so hydrolysis reactions were more favoured.

Membranes help concentrate reactants inside vesicles

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3
Q

What is a amphiphile?

A

a molecule with a hydrophilic and hydrophobic end

e.g. phospholipids

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4
Q

what is the Warm pool hypothesis for the origin of life?

A

Life started in clay soil

  • trapped in galleries between layers w/ charged surfaces
  • cycles of drying and rehydration lead to nucleotides being adjacent in the absence of water.
  • amphiphiles formed lamellae films
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