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1.5 - The origin of cells

1.2
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5.2

Assessment statements

DCS Topic Code Statement Guidance
1.5.U1 Cells can only be formed by division of pre-existing cells. Students should be aware that the 64 codons in the genetic code have the same meanings in nearly all organisms, but that there are some minor variations that are likely to have accrued since the common origin of life on Earth.
1.5.U2 The first cells must have arisen from non-living material.  
1.5.U3 The origin of eukaryotic cells can be explained by the endosymbiotic theory. Evidence for the endosymbiotic theory is expected. The origin of eukaryote cilia and flagella does not need to be included.
1.5.A1 Evidence from Pasteur’s experiments that spontaneous generation of cells and organisms does not now occur on Earth.  

Notes

1.5_notes.pdf
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PlayPosits


Lesson 1 - Pasteur and pasteurization

LESSON
  • Recreating Pasteur's experiment
  • Pasteur and Redi animation

Lesson 2 - Endosymbiotic theory

the_development_of_the_early_earth.pdf
File Size: 84 kb
File Type: pdf
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The origin of life and Eukaryotes
  • Looking at the structure of Eukaryotes, how could you know if endosymbiotic theory is true?
Good review website - http://learn.genetics.utah.edu/content/cells/organelles/
Review lecture
Origin_of_cells.ppt
File Size: 2168 kb
File Type: ppt
Download File

Homework
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  • Home
  • Biology
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      • Topic 1 >
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      • Option A
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