Showing posts with label Cellular Basis OF Life. Show all posts
Showing posts with label Cellular Basis OF Life. Show all posts
Sunday, December 20, 2009 | By: Rose

Discovery of the Cell

A scientist named Robert Hooke was thee first person to use the term cells to refer to the tiny structures found in organisms. Around 1665, Hooke observed a piece of cork with the use of a microscope which he himself made. There he observed boxlike compartments in the cork. Hooke thought they looked like the small rooms or cells of old monasteries. He called these room-like structures in cork, cells. What Hooke really saw were the outer boundaries of the cells. They looked like empty boxes because the cells were dead.

Many other Scientists studied cells. In 1831 Robert Brown reported seeing small bodies in the cells he studied and called them nuclei (singular from nucleus) Years late in 1839, Johannes Purkinjie observed the complex fluid inside the cells and named it protoplasm.
Tuesday, December 15, 2009 | By: Rose

Cellular Basis OF Life

All living organisms are made up of cells. Some organisms consist of only one cell, others, more. Our body, for example, has billions of cells while elephants and whales have trillions of cells in their bodies.

Cells vary in size, shape, and function but their are parts and characteristics common to all of them. Furthermore, certain cells produce secretions which are used to promote health and improve food production. You will know more about them and the people who first gave us information about the cell.

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