Monday, January 23, 2017

                             What I Know About Cells

The main point of cells and the cell theory is that it was discovered accidentally by a scientist named Robert Hooke which made the microscope in 1665 and tested it out with a cork and found little tiny boxes which he named as cells. But he also looked at thin slices of plants and found out that some cells have juice in them which he saw as living cells.


The main point of finding cells in other organisms is that a Dutch Merchant named Anton van Leeuwenhoek made his own microscope and used it on water in 1673 and found small organisms. He called them animalcules and today we call them organisms protists.


The cell theory is that it's been almost 200 years since cells were found. 1838, a scientist named Matthias Schleiden which studied plants and concluded that all plants were made of plants. 1839 he concluded that animal tissue were also made of cells. Then later on in 1858, Rudolf Virchow stated that cells can only be formed from other cells.


There is also a cell size which is that there are a few large cells, which means that most cells are small but however, some are big, and many small cells, which means that most cells are small and there are physical reasons why they are.


The parts of a cell is the cell membrane, which is a protective layer for the cell, the cytoplasm, which is the fluid inside the cell, and organelles, which carry various of life processes and play a role in specific functions. There's also genetic material, which is DNA in cells that carries info for new cells and has the control of activities of a cell.


There are also 2 kinds of cells  which are Prokaryotic and Eukaryotic cells. Prokaryotic are cells with no nucleus. Eukaryotic are cells that have a nucleus. Prokaryotics are also classified into 2 groups which are bacteria and archaea. Bacteria is common for the prokaryotic, there also the smallest cells known.

Eukaryotic cells have Cell Walls, Cell Membranes, Cytoplasm's, a Nucleus, Ribosomes, Endoplasmic Reticulum, Mitochondria, Chloroplasts, a Golgi Complex, Cell Compartments, and Cellular Digestion.

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