Organelles

Today we got through most of the notes on organelles.  Continue to check edline for those if you are absent.  We started today with the following daily questions

Thursday October 18^th

The cell is the basic unit of Structure & Function in all living organisms.

The human body has about 200 different types of cells with VERY different functions.  What determines the function of a liver cell compared to a kidney cell? The structure of the cell.  Remember, all cells have similar structures found in them but they look incredibly different because they have incredibly different functions.  Below are some pictures of different eukaryotic cells.

Liver Cells

Kidney Cells

Lung Cells

 See how each of these cells have VERY different strcutres because they have VERY different functions!!

The main difference between prokaryotic and eukaryotic cells is the presence or absence of what?

 A nucleus.  The term prokaryotic literally means "Before Nucleus" or "Before Kernel" because have no nucleus and they are much more primitive than Eukaryotic cells.  Eukaryotic literally means "True Kernel/Nucleus" because it DOES contain a nucleus.

What are three features of a cell that are common to both prokaryotic and eukaryotic cells?

While prokaryotic and eukaryotic cells are very different, they ALL contain DNA, are enclosed in a cell membrane, are filled with cytoplasm and contain ribosomes