JOURNAL 2: HISTORY OF LIFE

Week 2

This week we learn about the history of life

How did life begin??

Approximately, 4.6 billion years ago earth was formed. But we want to know the formation of earth.
So, the earth was said to be formed from the combination of smaller molecules that were carried by comets or that one that present on primitive earth.

From this, the ideas of prebiotic broth hypothesis was made. This hypothesis proposes that organic molecules formed near earth’s surface-in a sea of organic soup or on rock or clay surfaces.

From what I understand, the step by step formation: 


 -polymerisation produced large molecules and   macromolecules

-metabolize and replicate

-protobionts evolved and self replicate

-RNA was the first biological   catalysts/informational molecule (Ribozymes)

-prokaryotes formed



Proceed...

Activity that we done together were making a concept map model based on keywords given.

This map model teach us to connect the related keywords given and make a mind map that can be understand and have relations of how earth was forming. We do not need to read long explanation of the step especially before the exam because it was simple with keywords and easy to understand.


Like this..

 This was the result of our concept map model from our group discussion :)


That's all from me about history of life. Sorry for short writing =D

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