She Cells Sea Cells?

Cells are the fundamental structural unit of almost all life. There are some forms of life such as viruses (virii) and other so-called “non-cellular” life, but everything else is based on and formed from cells. This is called “Cell Theory”.

  1. All organisms are made up of one or more cells
  2. Cells are the fundamental structural unit of life
  3. All cells come from pre-existing cells

This is the “Classical Theory”. The modern theory is somewhat more complex, but we will not be studying that as part of this unit. The eventual focus of this unit is the genetic factors affecting inheritance, and when we have time, Evolution. In order to understand these complex ideas we will be building up from the basic structure of cells, through cell division, DNA structure,introductory protein synthesis and thus to genetic expression.

The first thing you must learn is the structure of a standard eukaryotic cell, with the names, functions and locations of the various organelles. The website “Cells Alive” will help you study and learn this information.

The next thing is cell division – the processes of mitosis and meiosis. I reccommend the following site as an excellent animation of the phases and operations occuring during these processes; John Kyrk’s Animations.

And finally, some rap:

See you in Class!

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