Year 11 Bio. Key Points
Monday, 8 July 2013
Classification
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Classification is not a scientific theory. It is the effort of one species (us) to try and group organisms in such a way as to make sense t...
Archaea and Eubacteria
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With the advent of better technology (particularly DNA sampling and sequencing), bacteria were being grouped into 2 large groupings. These...
Technology and Understanding of Prokaryotes
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One of the technologies that can be credited with a recent surge in understanding of bacterial cell types can be credited with the deep sea...
Sunday, 7 July 2013
The first cells, chemoautotrophs and photoautotrophs
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The Urey Miller experiment caused a great deal of excitement and was partially responsible for launching a whole new branch of biology calle...
Thursday, 6 June 2013
From single cells to multicellular organisms
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In the process leading up to multicellular organisms, eukaryotic cells had to form. A suggested mechanism is below. It is thought that a ...
The Urey Miller Experiment
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In 1953, Stanley Miller, a PhD student, proposed to his supervisor Harold Urey, an experiment to test if the chemosynthetic origins of life ...
Monday, 3 June 2013
Chemosynthesis versus Panspermia
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There are 2 theories that are proposed to try and explain the origings of life. These are: Chemosynthetic origins - The chemicals of li...
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